Ned downvoted all EOS content for a while [...] basically the same thing

I don't see this being at all similar. If you wanted to read the articles that Ned downvoted, you still were able to on SteemIt. What you're describing is just Ned using a feature of this platform. You're allowed to downvote as you see fit. I would've probably disagreed with his downvotes & think he's being highly immature for doing so, but this is no way comparable to actually hiding content.

Also those who were blocked from SteemIt.com (many of them) have hostile intentions. So, is justin supposed to ignore that

Literally yes. I don't care if Justin hates it, hurts his investment, or anything else. The entire point of having a decentralized platform like this is that dissenting opinions are allowed. Justin hid stuff he's afraid of, that makes me not trust SteemIt at all. It's as simple as that.

I understand looking at things from differing point of views, but the practice doesn't end there. When you see this whole situation from Jusitn's point, you realize he's an unstable man baby who can't think logically & operate calmly.