Mightygames had a sugar daddy. This isn't true for either NetDevil or Themis Group (or at least the part of the latter that's involved with Jumpgate, since TG supports more than just one game).
And as for OPs, due to the legal climate in the states (see the lawsuits by user-helpers against AOL and Ultima Online [different groups of people, though]), US-based companies in general are leery of using players to perform major functions, so OP-style player-helpers are
very unlikely to happen on the WWS.
(It could change, which is why I didn't say they'd never happen. "Never" is a pretty damn long time.

)