Any% IS 1p2c which is 1 person doing 2player mode. As for Any% one player is only in 1 player. Why would you want to put "1p2c" and "one player" all together in any% ? Unless I'm reading the title incorrectly.
I'm for renaming categories too. Many new speedrunners tend to get confused and don't understand why Any is not Any, although it doesn't matter.. Hirexen has the last word.
Those categories are called here that way since I can recall and I suppose it was done that way on purpose to encourage more people to attempt category with 2 controllers, which relays much less on RNG. Name "Any%" indicates, that game should be beaten the fastest way possible using any means possible, not necessarly being main and most popular category (first Mega Man or SMB3 are good examples). Depending on the board, those means can or can't include utilizing second controller even, if it's faster (for instance DuckTales board calls it "Any% 1p2c", but in The Legend of Zelda "Any%" includes using up+A on second controller and main category is called "Any% No Up+A" forbidding using second one). I assume on some boards, which you relate to, "1p2c" isn't faster than "Any%", that's why it's not called simply that way. Taking that into account, personally, I would lean more towards leaving current naming, cause of historical and pure logical meaning of true "Any%" (for similar historical reasons, main DuckTales category wasn't renamed to not touch the legacy). However, in the end, it's just the category name and boards on this site should belong to the community in first place with moderators taking care of keeping it with common sense and in fair way, so if most of the community is up for altering those names, I don't see a big issue with doing so.
