yes, a lot of my best friends played and it was our main way of communication online. haven't played OSRS in over a year but i still somewhat follow what's going on. apparently it is at an all time high with online player count since 2013 or even 2004 for that matter, but this includes a shitload of bots. some worlds even up to 50%
it could run on a potato and you didn't have to download anything back in the day, so it was very easy to just make an account and 20 seconds later you were on tutorial island. it's just a comfy game and not the next WoW clone. there's a reason it has survived for nearly 25 years