Blogs are tested hourly for a number of things we can check on.
If they fail they are put on the side and we'll keep on retrying until they get fixed and then they are added back.
At the time the user contributed blogs are added they are tested and verified as being "worth adding" from a functional standpoint and from a link value point of view. Are links posting correctly etc.
I almost always will catch when they are "cheating" but some people are adding plugins to do no follow and such so it really helps when you guys send support tickets telling me if anything is shady (same with spammy off topic stuff).
I just sent 3 warnings to contributing members because I was alerted to sneaky nofollows and such. Usually they will fix the linking problem.
I appreciate the tips.
Now - this rarely does happen - hardly ever - because most of our members know why we do what we do. Linking is important.
But a few members are taking courses or advice from sleazy forums and other seo guys who are teaching to NOT LINK OUT or use plugins to add nofollow or javacript or rediirect the links etc.
Some people are just misunderstanding that affiliate links should be cloaked and they are cloaking ALL links by mistake.
Most people willo correct this when I let them know - so it usually is resolved.
If the problem is not resplved I will remove the blogs from the newtrok
So be assured - if the blog is listed - it works - and links will pass juice - BUT I actually apprciaite that some of you guys are VERIFYING because that's how we catch these cheaters (also catch spammy posts!).
99.9% of the BUmembers are smart people who dig what we do - there is however a small number of people who are in this for the wrong reasons. we usually catch them pretty quick - so don't worry about this!
I look out for stuff - and MasterMind and others are helping too to keep the value high!