Discomfort In Using Bid-Based Voting Bots - @upmyvote

At the moment the post that is posted here does not get an upvote, has become the latest trend where most of the users in this steemit using bot service (bid bot).

Use of upvote bot services aims to improve vote or get an interesting upvote. However, recently one of the bots, @upmyvote said an "invalid bid" with the reason the post was blacklisted. In the blacklist who? No clear explanation. This is very detrimental to writers, SBD is lost and wasted. Is this a new way to make a profit from minnow?

@upmyvote, If you are not willing to upvote, please refund the offered funds.