3 of my sites were banned today by google. I have a theory as to why they were banned and have corrected the problem. Will waiting for a re-cache of my sites be sufficient or is there more i need to do?
There are a few times G will likely never unban you. 1st if you bought a site and completly changed it's subject or left it on topic and added a bunch of worthless generated pages. 2nd if a site is part of a big network of generated pages and they all got hit. You can also get banned for selling links. I'm not sure but I would bet they don't undo a ban like that either.
I didn't say you will get banned for that. I said if you get banned for that. For every site that has been banned you can list several sites that do the same thing and have not been banned yet and may not get banned. Google probably does not care if your site does not rank. But if you start ranking everywhere and your site is just worthless affiliate crap and everybody turns you in you may get banned.
Let me ask you this. If you buy a site completly change the subject where the backlinks are about something completly different will you walk up to Matt Cutts and give him the URL and tell him what you did.