while i do not agree that "making all the effort a waste" is a valid argument to keep this current loved system, I think to tackle your problem a solution is that only mapsets which are uploaded after the new loved system took place will need to adhere to the loved requirements. this is similar to how updating the ranking criteria works if im correcttatatat wrote:
Of course my opinion on this is highly biased, but I think the requirements were fine how they were. Quite a few people including me have already accumulated 100SP on their maps and met the criteria. To reduce the kudosu requirement is to make all that effort a waste. Loved should be an alternative to the ranking criteria, or it should be split into another category. One for maps truly loved by the community, and another category for those who put the time and effort into getting the kudosu and favorites.
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my opinion:
+ i think 100fav 30SP would be better cuz at last the osu player community is the dominant one, meaning having SR > fav doesn really reflect the fact that a map is widely loved (+ the fact that 90% players are not mappers nor modders, and therefore probably dont have kudosu to shoot at any maps)
and i think there should be a limit for the amount of stars one can shoot (sorry if its already mentioned i only skimmed over the 10 pages very briefly, like 5 stars per person, this is simply to prevent abuse of this 100fav 30sp requirement