OSRS runs on player driven polls. That's how it gets decided what content makes it into the game, and what rewards make it in. If players don't like something the devs modifty it until they do, basically. In practice, this doesn't really have an impact because 99% of new content gets voted in cause people just want new stuff. The difference is OSRS is not on patch/expansion cycle, they just create content updates from time to time and introduce them to the game once they are ready and have passed the poll.
One positive thing that it would do for sure is it would stop some people from claiming they represent the majority and speak their opinions...and would probably make the game even more casual.
PS. Healing logs depend heavily on who the other healers are and how they are performing. I didn't even read the thread carefully enough to understand who is getting bashed here, but you can't claim someone is bad based on his healing logs being in the 30%s all the time.
PS2. As for "Restricted democracy" @
Crimson Spears, that would probably be done, but the criterion to have a vote would be something lesser, like having a max level character for example or finishing the story campaign or something along those lines. They would never allow 0,001% of players to decide how the game is going to run, and rightfully so.