Ok so many of you may be unaware that Google now attaches backlinks to content not to urls. Again, Google now attaches backlinks to content not urls. http://dejanseo.com.au/hijacked/ http://dejanseo.com.au/mind-blowing-hack/ How can we use this? There are lots of ways. But basically if you just go out and copy content in the form of block quotes and post it on web pages like forum posts or blog comments with your link on the page as well, you will get some of that juice from that hijacked content. Of course other people that have their link on the page will too, but if everyone starts doing it then everyone can share more and more juice. So stop only focusing on unique content for your forum posting and blog commenting, as you are missing out on the juice that comes from hijacked block quotes from juicy big sites!
Some people might want to participate on a real forum without spam and quality content. You seem also to forget that a forum can be a source of great quality visitors. By posting spammy posts or comments you minimize that chance. In fact you maximize the chance of bad reputation with as final result: BANNED.
I have to agree, you can learn a lot from forums due to their quality content. I still believe the best way to go about it is think from the users point of view first, then the SE's. This way you will always look good in the eyes of SE's as that's their main goal - to provide useful content. So if you employ your tactic, you may get a small rise in the SERP's, but then you may get banned from forums. And if Google updates to stop this, you may have your site de-indexed as a result. My thoughts, think long term.
This just seems like something that google will penalize you for... whether it happens now or down the road.
Seems like a cool blackhat trick, I have to admit..but anything blackhat like this is gonna get you penalized eventually.