No follow doest really matter any more. But if you really care like many has mentioned and i agree with no follow links will make it look more natural and will have lesser spamers targeting your site
I have never heard this anywhere, even i tried to search many sources. Could you please provide us with the link that where the above information has been retrieved?
It has been always a debate when discussions like this are made but in reality it does not matter what link it is. I mean do follow or no follow does not matter much as both are doing something than nothing. No doubt do follow give us healthy back links to rank well but no follow on the other hand assist a website to get traffic and it keeps the link building ratio at par. To much of do follow back link can also squeeze the link juice so it should be a combination of both.
It's best way to use nofollow because google crawler not craul but visitor impresed your link and another search engine crawl this one.....
The key point that here's that this doesn’t matter what form of link you usually prefer because both links can give back traffic. And visitors are one of many factors being an online success. A site without visitors is just like having a shop inside the mall without visitors. Quite simply we could state that Do-Follow Links are great for Human Traffic and SEO Traffic. As well as on the other side, No-Follow Links are just best for Human Traffic that is still the best traffic you will get.
There is no restriction in no follow links. Because there is no problem of spamming in no follow link and still we get traffic from that no follow links. SO its good For pure SEO.
however no follow links are not crawled by search engine but they help you get good traffic and make your backlinks streangh more natural.