Hi Mark,

While I'm no exact expert...

I'm sure the Warrior Forum is a high credibility website.

I would expect it to help rather than damage your site's ranking.

However a low quality forum, with a lot of spam, may damage.

As long as yo dont go overboard. Forum backlinks can get you some pretty nice targetted traffic as well.

Forum backlinks looks natural to Google and will give maximum benefit in SEO.(do not spam)

if you creating the too many back link by adding signature and blog comment then yes it will affect. but if you link it with brand name then link is OK.

If you create lots of backlinks with the forum which is not a quality sites, then it is a problems, so try to add signature only in high quality authority forum only.

Don't abuse it and you should be fine.

If forums are your niche relevant or high PR then there will not be any issue, but if they are coming from porn or unranked forums then they will create a spam action for your website.

I have over 3,000 links on a single same niche forum pointing to one site, all legit comments. That's not links for SEO, it's direct targeted traffic.

Even If Google ever slapped my sites (doubtful) I would take that same niche forum traffic over SERP traffic any day of the week. Building up a good rep. on a same niche forum is easier to make a sale compared to an unknown in the SERPs. I still rank pages in Google SERPs, I'll take all the targeted traffic I can get.

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I've done it across different niches (some of them 1,000+ posts) and never seen any negative impact as far as I can tell. Plus the traffic benefits.

Backlinks from will not hurt your site because most of the forums provide Nofollow links.
Links from Blog Commenting can hurt your site reason may be that the linking site gone under spam with huge comments on the page.

Thanks For Replay
After checking the Links from Google Webmaster Tool
i Had Found 70 Different Links Forum Affiliate Programs Directory - Many Affiliate Marketing Programs Listed
Does it is Affect my Website Ranking? and we have not used any signature for the various post in Forum.

Thank again

No too many backlinks from a forum can't hurt your site if you are getiing traffic to your site. Still forum back links are a way to rank your site if the forum has high pr and authority.

Building too many links for your site is not a problem but you must take care of the terms and conditions of the forums.

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There should be a ration of backlinks you get from sites either its forums sites or articles sites or social networking sites. And always try to get unique backlinks means one link from one site. But I have got around 150 backlink for my blog from warrior forum, v7 fourm and many other but I didn't any issue with my blog. So if you do quality work it will not affect any negative impact on your sites.

Is it good to have backlinks in your forum signatures to your websites or does Google penalize you for this? I heard that an update to their SEO rules made forum signature backlinks a bad thing.

Regards

Unless there are not too many backlinks on a single page (like a sitewide link in a blog)... Otherwise, it shouldn't be marked as spammy or dangerous backlinks!

As long as the links / your site / forum are all relevant and on topic then should be fine. Also not commercial looking or exact match.