There is some truth to the fact that online poker is getting tougher, but it is definitely exaggerated. I can assure you that it is still beatable and very profitable by competent players.

Also, don't forget the option of playing live poker. With a little training and practice, I would bet that most readers of this blog (who aren't prone to emotional instability, aka "tilt") would easily dominate at least the low-stakes games.