Can too several nofollow backlinks hurt SEO?

[Nahin]

My data processor has had a 2 hundredth visit traffic within the last month. Before that it had been continually increasing month by month (for the last quite a year and half). Recently I actually have done a lot of link-building on Yahoo Answers. (about 10~15 per day depends on what number queries I may answer). The links there are no-follow. I continually picked the niche my website was concerning and answered those queries I had written articles on... therefore I may give a back-link to my articles for a lot of data once I fastidiously answered the queries.

I am inquisitive if that would have injured my SEO. it's simply a wild guess. as a result of i have never done the other link-building recently. a whole lot no-follow back-links were added to Yahoo Answers at intervals 1~2 months was the sole huge issue I actually have in dire straits attempting to earn a lot of targeted traffic.

[KelpyMson]

Too many nofollow links haven't any impact on your website’s PageRank. These links were designed to ensure that generating direct traffic to your website could possibly be utilized around needed without compromising the general quality of the website’s SEO.

[MallofStyle]

Any natural looking link scheme would not hurt SEO.
If your site has 200 visitors, do you think that 15 of those people would daily talk about your site in yahoo answers ?
Natural ? Unnatural ?

I would suggest to diversify your link building tactics - domains / IPs / Countries / forums / articles / guest posts etc etc.
Diversify in every possible way.