But you can find smart people with acceptable incomes on any ol' dating app. People already allude to their professions all the time, and you can pretty easily suss out intelligence -- all that without narrowing your dating pool to "devs who for some reason aren't on the bigger dating sites".
And if you're a hetero woman dev, chances are your network is already filled with hordes of eligible bachelors a degree or two away -- if you even want to date in that pool.
I think that's the biggest "if" here... "devs" are not really a sexy stereotype in the way that date-an-athlete or date-a-doctor or date-a-rapper would be, I don't think. If anything, it probably hurts your chances. I certainly wouldn't go around throwing, "Hey babe, ever been with a dev?" Lol.