How much weight do sig links have, and why do people buy them? Why would I wanna buy a sig link of someone here at DP?
Sig links are considered as Backlinks.A sig Link of Reputed Forum like DP can bring you good backlink and much visitors.For example if you post something in DP it gets listed in DP fast and People would be able to see your sig links too.Also your DP PROFILE might contain PR
I think it also helps to build strong backlink when you buy someone's signature, if you don't have time to post your own message at DP...
It really depends on MANY factors. Getting a sig listed in the first three pages of a sticky thread is better then being the thread starter of a thread that just get buried in the archives. A post one page 50 of a thread that is well thought out is better then a post on page one that simply says "I agree". As for why people buy them... Why do you have a sig link? Now take that answer, and apply it to me (or anyone really) having the same sig link. See, it's double the fun Currently, the top rate is a penny per post, though it's hard to get that. Things one should look for is the quality of the member you are buying from. Someone that posts 20 times a day but posts no content, is likely to generate less traffic then someone that only posts 20 times a month but has something to actually share.
one of my best traffic sources are sig links here at DP for my webmaster related sites, between them I get around 10,000 uniques per month, and they are an inexpensive form of advertising. as for linkjuice Im not sure how heavy they really are, as each page on DP has HUNDREDS and HUNDREDS of OBLs
DP is one of the strongest forums with do-follow sig links. The sig links can help to get your sites ranked better in search engines and they also get the search engine bots crawl your sites more often.
I think that only forum topic related sig links worth it. That is why most of the sig links here are web releted.
Buying from a member like me gets you - good traffic as i post a lot - good brand exposure as i psot a lot - 10,000 + backlinks - as each post brings 3 backlinks.