Are SEO services from fiverr SAFE????
 

Latest i've found a lot of 5$ services, that has to do with SEO.

For example:
i)I will do SEO Backlinks pyramid for $5.
(with some software like gsa i think)
ii)Receive 300 verified social bookmark backlinks and boost your Google
ranking
iii)I will get Your Website 5 PR 7 Backlinks for $5

Services like these....
Are they safe????Or can your site be penaltized by google????
Even from topseller fiverr member????
Except from safety, will give results????


Does anybody have used these services????
Your opinions please!