Sporstsbet.io despite have some major issues, there are gamblers who still uses them up to now. The site is running alive and kicking. Well maybe it will depend on users own experienced. Just deposit at your own risks like the usual way when dealing in a sports betting sites.
I mainly used Nitrogensports and as far as my own experienced is concerned, never deal with major problems here. May we know what experienced you have on Nitrogensports that turned out to be one of your blacklist in terms of sports betting sites?
They do plan on promoting their site even further with a signature campaign starting soon when their worldleague one ends.
From what they said on their thread. But with all the negative trust they have received on their sportsbet forum account, I would assume they might be asking someone else to be managing their campaign.
So not to be asked to escrow the funds to pay out their members.