Well.. sounds like a... hold on...
Let's just say I've seen people get stuck on the illusion that forcing characters kiss each other, no matter how out of character would that be, equals good writing. Bonus points if they are two males who hate each other outside the fanfic! Even more bonus if it happens by accident, because you know, nonconsent issues or sexual abuse doesn't exist in fanfic world.
And.... *add exciting drums* one, though not all, of those people was me
Okay, I'll say it.
That sounds like a You problem.
That is literally the most Basic B#tch Problem I've ever seen.
You didn't actually need to write hated enemies kissing for clout. You don't magically learn what consent is when you switch from fanfic writing to original writing. That's a You thing. Plenty of fanfic authors have done [checks notes] Dragonball Z fanfic without showing Vegeta getting Mpregged by Goku, or whatever.
If you gave a f#ck about the craft, and writing to hone yourself instead of writing for clout, you would've already been doing it.
Not to say fanfic culture affects to _everyone_ likewise (it's a writer weakness anyway, I think, you just get hooked to the kind of feedback that consists of "awws" and "yaaay they kissed!1" and nothing more), just that I, personally, won't risk that again. And because fanfics can't offer me anything anymore, I don't need to reconsider that.
That is also the reason why I said "my style" instead of just "style". It's a personal thing.
You need more self-control than that.
I'll have to copypaste what I said elsewhere for this one because it still applies.
If you didn't already care about continuity, grammar, character voice, development, worldbuilding, research, having a thick skin, and the like, then writing non-established characters isn't exactly going to help you there. At that point I'd say it's too late to start caring. Outside of your social obligations and work, you either want to learn the fundamentals of writing and hone your craft in what remaining free time you have, or you don't want to, and ideally you would've been working on those skills already instead of handicapping yourself with a view of fanfiction being less intensive and trying to make up for lost time now with original work after you might've codified bad habits. You still have to write in order to say that you've written, the same way someone doing a fangame still needs to learn how to do proper level design/coding, and fanartists learn how to draw figures. No amount of an IP pre-existing will do all that work for you.
You getting hooked by cheap feedback is you getting hooked by cheap feedback. An addictive personality interacting badly with a certain thing doesn't put that thing at fault; a teetotaler can be at a party with booze and not drink a sip of alcohol. A recovering alcoholic should know better than to go to a party if they believe they still can't control themselves around alcohol. But what neither of them should be doing is going to a party, taking a sip and getting buzzed, then blame the party for existing. You knew what it was going into the damn thing, have a little more respect than that.
Adding this: what is not a personal thing is that fanfic culture is not the place to get any real feedback. If you like writing fanfics and entertain people, then go for it, but don't expect to get beyond a certain beginner level only with fanfic feedback. If you can add something else to support your writing, then it's a different thing. If you write just for fun, for entertainment, and don't want to get constantly better at it, that's fine, then fanfics are the answer.
Otherwise, IMO, fanfics are a step back in writing if you're already capable of doing better than that.
I'm sure Alan Dean Foster knows that really well.
No he doesn't, he's trying to get (if not has already gotten by now) his fair compensation of royalties from Disney for his Star Wars novelizations that he started in 1976, which are essentially fanfiction, as he is not George Lucas nor one of the original staff who worked on the movies themselves.
The guy does honest work for a living using someone else's IP, because effectively replicating character voice and keeping consistent with a main property and its ideals and continuity is a valuable skill to have, like in the Renaissance with all those replicas of Mona Lisa done by Da Vinci's students.
Not all fanfiction is the Mona Lisa. That's not the point.
You don't actually have to interact with "fanfic culture" to write things even if you write fanfiction (I would know, I sure f#cking don't interact). Getting your brain rotted by it is on you. You either want to tell a story in a world you and other people care about, or you don't and just want to lazily crib tropes from better people. The amount of work you put into that is not actually going to be dictated by its readers. If it were,
they would be the authors and creators of that particular story. But they're not. They may be writing something else, but they're not writing
your story.
Fanfic culture as it is has warped from the art of receiving proper feedback
because of thin-skinned authors who consider it a less intensive form of writing and, I quote, "
expect nothing but praise" because the writing was given to readers for free, as if that's an excuse for putting out a low-quality piece into the greater internet. Then they take that attitude outside into "the real writing world" and get eviscerated by people who know what to look for that would dissuade future readers from paying money.
That is a Them problem. That doesn't have to be You too, no matter what else you have in common with them.
For everything else, writers gonna write.