27 Sep 12 3:58 am
To add to that, you want to start by adding 15 to 30 post of quality, relevant, valuable, informative, content before you even ever consider adding your signature link. So making 7 to 10 post a day for three days should about do it.
Now if your website's content was anything like your forum posts--then I can understand why Google's Penguin update affected you.
In fact concerning your website, if there is no quality content on your site available, then Google sees that by the number of visitors that hit the back button immediately upon landing on your site, which causes your bounce rate percentage to increase, which leads to red flags.
Similarly the same thing can be said about your forum posts--no forum is going to delete quality, valuable, informative, content even with a signature link, but if there is no value there, why keep it up?
Quality Content Is King....