[numeri]

Winrates can definitely be bloated at the nano-limits due to the weakness of oponents and the lack of a rack. (As others have mentioned.) I had ~8 BB/100 at both 0.02/0.04 and 0.05/0.10 at Stars, through 10k at each. This could easily go down with a few really poor runs.

Again, as others have mentioned, focus more on learning the right plays. Don't focus so much on winrate. It's important, but not the end all.

By the way, you can earn enough to move up eventually. Just be patient and work on making the right decisions. Good luck!