You got the faucet going now with 10+ players at all times. That's nice! But you have to be very lucky to get even one single opponent in at least a lowroller game. And I don't see you doing anything about that.
There's a
subreddit that was quite active in the beginning. But you didn't show up in a long time and now it's dead. You should have a look at
this thread with some ideas to get the lowroller going.
Here is another one:
You might want to take a lesson from how poker sites run tournaments: you'll often see tournaments advertised with "guarantees". Like it'll be a $1 buy-in with a guaranteed price pool of $25. That way if more than 25 people join, the site isn't out of pocket at all, because the prize pool is entirely funded by the entrance fees. The guarantee makes it very worth while for the first few players to join, which seems to be the part you're having trouble with - often your games are completely empty.
The art is in picking the size of the guarantee. You don't want too many games to be costing you money, which happens if the guarantee is set too high. And you don't want to be running empty games, which happens if it is set too low.
You should at least kick the rule that you have to play the hole 10 minutes alone to get your buy-in back. This is not working. Nobody joins a game where the only opponent is twice as big as you (at least).
I like this game very much, but the faucet is slowly getting boring. Please get the real games going