Well, maybe he should wait a little bit more (the ranking will NOT be changed in just an hour, a day... it could take up to 3-6 months...) // Wiki backlinks are very powerful, so yes, they are really worth for SEO
If their not dofollow links they may not be as helpful as you think, they help with link diversity but not so much in boosting serp results.
Well They may be helpful if unique contents have been used there on every wiki site without link spamming and if they are do follow.
For after google penguin update , google is seeing natural link building , not do follow or no follow,
Exactly guys thanks for the proper ideas to known the exact wiki links are. therefor everyone telling it's a automated generates links, but i was argued there is not get spam because Wiki is one of website and one of best High PR website na x) So i hope that it will generate more audience with in few months !