Well, about the spamming – it was more joke than anything (still true, however).
You should have avoided using free message boards.
Just avoid anything free as a rule of thumb!
Many people use these free services just to create a pseudo-sites, and them put a whole bunch of links to their websites from there. Yahoo gave the finger to this type of SEO, thank God.
Also, maybe you have a bad apple somewhere – you should not interlink your websites too much. I think 25casinos used to rank pretty good for “internet casinos” and now it’s gone. Correct me if I am wrong, I might be thinking of a different site.
I had a darn good site which was banned from Yahoo not because of spamming but because a bunch koksukerz just copied my website’s content word by word (although Yahoo’s explanation was something like “not enough content” or some made up shit like that).
Another possibility – have you submitted for paid inclusion in Yahoo Dir lately?
There are a whole bunch of reasons why your website might be banned by Yahoo, but no matter the reason – there is almost nothing you can do about it but wait and hope you will get re-included in some point of time. Hope is a good thing, I had a website being re-included without me doing anything, but wait. I took about 6 months, but it’s back in business.
:woohoo: