why these web 2.0 blog website keep banning me from posting blogs

why these below given web 2.0 websites keep baning me for post blogs related to my business

They are super spammy. I would ban them instead. If a site got "blog" word in its domain it screams to google:
Look at me i am a spam site, ban me, ban me!

Those blogs are run by Money Robot. If you don't post to them via their software interface, your account and posts will be removed within a day or so.

I don't really know why they bother to keep a public registration section open - it can't be for marketing reasons as they don't seem to be upselling their own product to their signups!