Your posts are about steem - yes, at the same time you grab rewards from the reward pool. Many times by buying your own bot votes to trend, this is obviously a win win for you since your bid bot takes a cut out of all purchases.
It doesn't really matter what my taste is, I'm just giving my opinion. You can ignore it and think I'm talking out of my ass or maybe understand where I'm coming from.
Let's say you get top 20 witness, smartsteem continues to reap in the rewards it does and on top of that you're also posting. There's no guarantee for Steem that next time it pumps a little you won't pull a jerrybanfield and power everything down and continue to leech off of it.
I'm not saying it's wrong to try and get rewards from most sources on Steem, I just don't want to happen what happened after beginning of 2018 again. Where the majority who "tried, talked and cheated" their way to a lot of Steem will just go dark right after next pump cause "they got what they wanted out of it" and as you say maybe move over to another blockchain to start something that gives them more ROI with the investment you may or may not have gotten from Steem for relatively little work - such as bid bot income.
Again, I'm just generalizing and it's not directly directed at you. I don't know you, you could turn out to be the best Steemian ever and stay with the platform for another two decades. I just don't think the rewardpool should be concentrated to a few users too much, especially if they have not put skin in the game other than their time.
Other than that I think you're one of the "bid bot" owners who has done a lot more for Steem than many of the other ones have, that's why I'm still voting you as witness. We should just be careful in general who we trust with the rewardpool in the long run.