If we are talking about popular ships we dislike I gotta say my biggest is Elias/Peter. It irks me because it's basically treated as canon, probably because their VAs have talked about it, but there's absolutely nothing in canon to suggest they were romantically or sexually involved.

The thing is their relationship is interesting to me. They have a sort of one sided rivalry where Peter is trying to thwart Elias's plans and Elias is pretty easily playing him. Actually as I'm writing this I'm realizing I could get behind one-sided Peter/Elias, with Elias being the only person Peter cares about at all but to Elias Peter is just another pawn in his plan.

But I don't like the fanon version of their relationship because it's so out of character for both of them.

ohh yeah, i absolutely get that. lonelyeyes is a fun ship overall, but it’s also the source of some of the more obvious mischaracterizations of both characters.

i hate that so much fanon content just. completely mischaracterizes peter in order to make him this stoic, quiet, easily annoyed figure, when in canon, he’s pretty much the opposite. he’s overly cheerful in an empty way, he’s extremely talkative but never says what you want to hear, he’s such an excellent portrayal of what the lonely really is and i hate that people just ignore that in favor of a trope. he’s not shy, he just genuinely loves being excluded socially and thrives on others’ discomfort. he’s not lonely, he’s of the lonely. he’s the guy at the party that makes you feel like you’re not supposed to be there. he’s the guy that reminds you, with a wide grin and genuine joy, that you’ll always be alone.

peter lukas is an excellent character. the fanon portrayal of peter lukas is a different guy entirely.