I learned to play guitar back in the 90s when the OLGA was still a thing.
UG sucks for precisely the reasons you mention.
I suppose the trade-off is that now all the great folks who were making nice tab content are on YT, but still, if you'r business model is making money off aggregating a bunch of content people created in the early 00s because the love of it, then that's hyper lame.
I still use UG if I am in a hurry and want a quick idea of other folks' take on the structure of a song, but I'm thankful I outgrew the need for other folks' transcriptions.