No. The more backlinks, the better. Lower PR links require more of them to boost your PR but other than that, a backlink cant harm you or else black hatters would use banned domains to unfairly attack competitors sites.
if backlinks actually hurt anyone - people would go crazy and be more picky than google indexing sites lol, just build up on PR0 backlinks from directories and you can hit a pretty good PR without actually having any high backlinks. << i did that for my directory - only like one PR1 and a thousand PR0 lol (my old directory, which is no more )
Low PR backlinks won't hurt your site, because you simply cannot control who links to you. But if all your links are low quality and crappy, then you won't rank for your keyword.
hehe this is debateable guys... Low PR will not hurt you but from what i've read on a few seo blogs, too many banned sites linking to you can be an issue, but as far as the "low pr" goes its just like scoring a 2 pointer and high pr backlinks being a 3 pointer (basketball references lol)
Think about this You can't control who links to you, it would not be fair to punish a site for being popular.
I don’t think Low PR backlinks or non themed backlinks will harm you. If you had noticed google not give consideration to every backlink your site have. google bots are smart enough to recognize which link are genuine and theme based. In the case of FFA now the google bot’s ignore the links rather than harm your sites ranking because lots of rivals are submitting competitors link to FFA’s.
Low PR, even PR 0, are still great links when they are on theme. A few PR 0 on theme links will do more for your rankings than a few PR4 off topic links. Those off topic ones may help boost your PR but the on topic ones boost your SERPs, which is all that matters.
Google will only consider the links from websites which is relevant to your own website's theme. Also, google takes into account a. the number of outbound links in the page that links to you b. the age of the linking website c. and ofcourse, the pr of the page that links to you. The low PR and irrelevant links is not taken into account
Less important but they don't hurt you. The more back links the better pr 0 or whatever it can only help Jason
if a condition of backlink is one way with low PR, it will never hurt your site PR, but if you are exchanging links, it COULD hurt your site PR as well as ranking. Under few conditions it could hurt; You are linking to a link farm. You are linking to an irrelevant site to your site theme, esp. adult, gambling sites.