In the glory days when there were giant schools of fish around 2005-2008 I played LHE (because I was scared of the variance at NL lol). I maxed out at $3/6 and made about $40k over those three or so years before Black Friday. I also binked one $22NL tourney for $4.5k in one of the rare tourneys I actually sat through several hours of without being drunk.

Since then I've barely made any money really. PLO is full of fish but the variance is even worse than NL. Still, it's a fun game and I'm never risking much at the limits I play so I do it mostly for entertainment.