this is stuff you really should bring up with individual communities and not the general forums

but really not liking bug abuse in speedruns to me indicates broad mindset failure and you're probably not going to enjoy speedrunning very much as a result. Firstly, what constitutes abusing a bug is surprisingly difficult to satisfactorily define for quite a large number of games and secondly, bug abuse is tech, tech is interesting, intentionally limiting the space of what you're allowed to explore is in most cases, stifling and stagnating and therefore boring and as a result most people into speedrunning don't want to do it. Some games benefit from glitchless categories in the event of them just being so insanely broken that they don't even resemble a video game anymore, most don't.

Vice City specifically is a really weird example because they have a category where it's like eight minutes of one glitch and then the game ends and that obviously blows ass, so they have a different category where you don't do that but mess with a bunch of other cool breaks and glitches and stuff. Those guys do pretty much exactly what you describe and have seperate categories that limit use of certain bugs because it destroys the game so heavily. Vice City is an example of the few speedgames where a "limited bug abuse" type of category actually works wonders, so I dunno why it's the one getting a specific callout.

This is something that can't and (much more importantly) SHOULD not be handled on a general basis, but for each game individually. Besides, if there's people that actually run glitchless, people are going to make a leaderboard for it.