Penzu, Diigo, Medium and Evernote are web 2.0s, so they're not strong in terms of ranking power (although Medium does have some value, but you'd have to use an aged account that doesn't noindex the links)
Rollbol I've never heard of, but I just clicked on it and it looks like a social network, so that's not good either....
I'm not going to check all sites on this list but I assume they are similar platforms (web 2.0s, social networks, bookmarking sites, etc): the usual low quality sites that most people have access to.
If you're purchased a guest post you've been tricked, because guest posts are articles published on other people's websites, not on web 2.0s and social platforms.
But if you've purchased web 2.0 links or similar then you've got what you paid for (well, I assume that you didn't pay $100s for these links because - if you did - you got ripped off)
