They are concerned. I don't want to take the nyms of a few of them but they targeted me for the same very recently. If you remember, one of them even asked if I and @Rsync25 are the same. They made comments like I abuse the reward system to be on top of the leaderboard which isn't correct. The account that's by the name assmilker also made derogatory comments on my posts. I had to mute two stackers unwillingly and had to ignore the assmilker (nym).
I think the thing that's worked for me is zapping top content daily, creating some engaging posts,(may be), subscribing to territories and stackers I like, so as to get notifications from them. I've even subscribed you and never miss a comment and post from you. My default zap is 10 which I do if I find something valuable, interesting and even funny. And that's all I understand.