Seems that some blogging platforms/cms’s have issues that could get your site removed for web spamming by inserting text that is hidden.
One commenter there had this to say:
Some freely available WordPress templates (specifically from blogthemes.com)contain hidden links from the designer linking to certain cancer websites. I am sure most people do not see that as it is kind of sneaky.
I do wonder why they don’t just ignore such aspects for ranking purposes. If its identified as hidden algorithmically then it can be ignored as a ranking factor too…no? Or am I missing some bigger picture here.