brunotorres, no one is recovering but it doesn't mean that no site has overcome what Panda went after.
Example: The week before 2/24 Google found 1000 bad pages and decides that your entire site be pandalized for them. Unless Google says re-calculate that site, you will stay pandalized even if you remove them. It maybe that Google has a set time penalty for Pandalized sites. But Google always gives confusing and contradicting info other than "build sites for users." Even then they will penalize you, a thin tag page may make a lot sense for users for example.
So don't let panda scare you. Really thin and not so useful sites have survived it and really good ones have been slammed.