We've definitely not muted comments, I voted up a few, not sure if that's what you mean. It's kind of annoying the community activity page only shows when people follow and not when mutes happen, I can check with curators of OCD but I highly doubt they decided to randomly mute comments. I'm guessing OP must've muted some and that's why they show up like that as jarvie mentioned in another comment.

Also for your proof of sharing activities, have you registered with @poshtoken? We've updated a lot of things, the full announcement is still pending as we're waiting to do it with the airdrop at the same time but you can register by logging in with twitter on our website: https://hiveposh.com/ if you haven't. You'll be able to earn some posh tokens for sharing hive links as long as it has a hive tag among many other things we'll announce soon.