I discovered that Steemit.com has been smart and having all links to NoFollow until a user has reached a certain level of Reputation. I do not know exactly what the threshold score is but I think it is a good idea to prevent people who would use Steemit only for SEO purposes.
exactly, one of the better ideas on steem. this is to prevent PR/Spammers from using steemit as a SEO Bitch.
The temptation is too big. Especially now that we are just about to breach the top 4000 websites on Alexa. We will soon surpass bitcointalk.org if we keep going at the pace that we are. I remember hubpages doing something similar like having at least 5 posts that were reviewed by the editor before giving you a DoFollow link.