I think the one @carolkean is talking about used to be a bid bot owner. He sees SBI essentially as bid bots with an extra step. The best we can do is to keep discussing it with him and try to persuade him to leave SBI alone. That guy is on the SFR flagtrail, so he does downvote some stuff that legitimately should be downvoted. He might come around eventually. Let's hope.
Now I have this guy in my wallet threatening to downvote me if I don't unvote some witness, and as far as I can see, I never voted for this markymark in the the first place. Do I hit Approve? This doesn't look like any witness site I've voted at before.
Please REMOVE your witness vote from the downvote freek @themarkymark, he doesn't deserve to be in the top 20 witnesses! You have 24 HOURS from now to act, otherwise you will be DOWNVOTED! (Just let you know how you feel when you received downvotes) Link to remove the witness vote: https://beta.steemconnect.com/sign/account-witness-vote?witness=themarkymark&approve=0 For reasons to remove the vote, please check out this post: https://busy.org/@fuk.themarkymark/fuck-themarkymark
And when I try to make sure I've voted for @enginewitty, I get these scary messages about granting privileges to apps:
Awww, you're a peach! That is a bit misleading, we should probably have some devs reword that!
It looks like you are trying to add the SteemConnect extension, you do not need that to vote or unvote for witnesses.
You can do it from the hamburger menu in the top right. 
And you're the markymark I was told to downvote or risk being downvoted myself? Thank you for the information. :) Next up, get that blackmailer out of people's wallets...
Aha! @shadowspub is already on it - thank you!
https://steemit.com/witness-update/@shadowspub/heres-my-answer-to-your-attempted-extortion-themilkymark
And so did you! I'm late to the party!
https://steemit.com/hive-189329/@themarkymark/did-you-get-the-memo
Amen, @shadowspub!