Do people use WikiAnswers for building links? Of course, not spamming them but if you find a question to which the answer happens to be on one of your site's page and you submit it as a Related Link.. that's a good way of building backlinks isn't it ? Oh and they are also do follow - is anyone doing this strategy ?
I am not sure whether they do follow up links or not but it would definitely help you in certain ways if you put some useful info about your site which the users might be looking for.
Well, I checked the related links' source code and there is no nofollow tags around them. Example: http://wiki.answers.com/Q/What_is_Welbuteral (see the NHS link).
Yeh there no follow but can drive traffic to your sites for months if the topic is right. It's great when someone is beating you in the serps for some phrase and your link is sitting right there for them to click!