My position has evolved quite a bit.
When the whole thing started of people posting drum covers and stuff on YouTube, I didn't get it. It seemed stupid to me,
I thought everyone should do it the way I and everyone else did, you go out and play dingy bars on a Tuesday night and work your way up the food chain or rehearsing, getting into better bands, playing better shows, getting the Saturday night at 10 pm slot.
Years later, I am now of the mind, yeah but most of those dingy bars don't have bands anymore. Half the clubs I used to play at closed down.
Others have become very difficult to attend, as parking and such is a nightmare. Drink prices are insane. It's expensive to go see a local band these days.
So many people in the public at large think going to see a DJ counts as going to see a live band.
Many clubs that used to have live bands now just have DJs or karaoke. It's cheaper, easier, and in many cases, brings in more bodies.
And even when I was playing dingy bars and working up to clubs in the '90s, I didn't have nearly the opportunities to gig as drummers did in the 50s/60s, etc. If you read Hal Blain's autobiography, Mick Feetwood's autobiography, or any autobiography of any musician up and coming in the 50s/60s or even 70s eras, there were so many more clubs and bars to play at where the bands actually got paid. Grace Slick said in her autobiography part of why she joined her 1st band was she could make more money playing clubs than she could at her day job! Now, good luck with that!
With fewer and fewer places for young musicians to gain real-world experience, why not post online?