Honestly most all alts get buried and trashed on here because most people jumping on here are either bitcoin maxamilists or just prefer bitcoin in general. The alt subs were made as a way to not clutter the bitcoin threads. Most alts are just a nuisance to bitcoin because it gives crypto a bad name
The prime era of bitcoin maximalist were in the past, most of them moved out due to several reasons. I agree that the number bad projects gives crypto a bad name but that is what happens in a decentralized market as you really cannot control anything and you need to be smart enough to determine which one to invest and which ones to reject.
Cardano might not be popular here, but there are other groups that pumps the coin including in social media, apart from the hype it created i am yet to find a substantial growth.