Safest 10 web 2.0's to use?

Well, I've been making my tier 1 on web 2.0's like blogger, wordpress, tumblr, webs and weebly. Today, my weebly account got deleted, lost some backlinks ... and I don't really know why.
Yes, I know, there are lots of lists of web 2.0's, but there are hundreds of links, and I don't really know now which one is safe, since weebly really surprised me.

So, anybody's got a top 10 safest web 2.0's to use please?

Thanks a lot!

what do mean by safe web 2.0's? web 2.0's randomly will get deleted/frozen/banned for sure when you build links to them.

Well, I started doing some tier 2 since 3 days ago ... but I did only like 30-40 links per each web 2.0, lol. I didn't spam them.