My first post on Twitter was "trying to figure out WTF Twitter is". I subsequently didn't post for six months. I wouldn't judge the platform on what's posted in the first 30 days of existence. As for sustainability, $500k in revenue is more than Twitter had for years.
I don't know if it'll work, but I certainly hope it does.
I imagine it being pretty spam-free if it costs $50/year, as a bonus.
> You will be committing to pre-paying a full year of "member" tier service.