Of course not; they are useless junk. They are the exact sorts of links that Google penalizes with their penguin algorithm.
Profile linking is off page SEO technique and Its important build quality backlinks and generate traffic. Its also important to improve visibility of website in search engine result.
In SEO profile links are given less importance, profile links are good to diversify your anchored text it depends on your backlink strategy Social profile links have more value and you can build value to them
You get a link back which surely helps in generating a trust worthy referral link for your domain and some ranking improvements as well.
A profile is personalized information about a specific person. Need more text and data, then there will be an effect!
If that is the case, then care to explain why they are the sorts of links that Google is targeting with the Penguin algorithm?