I have not Tried and would Not Go with in future Too
link building gig on Fiverr: it is really a wastage of money. i would say stay clear from fiverr if you are looking for SEO.
There are some good gigs on fiverr but you do not want to go over board. Pay some people to do some social bookmarking, hire writers for unique articles and then pay to have someone do a Link pyramid with your spintax article.
However There are so many people out there who are offering SEO service with better Reputation in market . it will cost you more than fiverr(Five Euro) but then you will be getting better service.
Fiverr gonna loose lots of customers since you can get anything SEO-related on SEOClerks.com , thats my honest opinion. Fiverr has to make some great changes fast, if they wanna stay in business. SEOClerks even has a better support, they have freebies, and a lot of other features Fiverr wouldnt even dream of.
I wouldn't do it.. You could still build backlinks to your site but google is looking for good content that people want to read. Then it will get shared and liked. google pays attention to the social aspect of a site now.. so if you are interacting with your visitors (comments) google pays attention to this. Its all social media now..
Well, I won't recommend fiverr to use for backlink purposes, if you use it for backlinks then it won't be too helpful as lots of gigs are about automated links and your site would go into Google sand box.