The voting bot booster recently downvoted many posts related to Steemians meetup in munich. You may see those downvotes by browsing boosters voting history (Visit https://steemd.com/@booster for more):
Booster was accepting bids at that time. You may see the bids in the transfer tab of booster.
I became aware of this after steemcleaners admin @patrice informed us in the witness-social channel about this. She also warned me about not talking about booster.
She warned me most likely because booster's owner is a big whale named fyrstikken with 750000 SP. He has recently tried to shut down other users as well who criticized booster. Booster recently downvoted many of @ilyastarar's posts and sunk one of them. Earlier, Ilyas made a post about how users might lose money by bying votes if SBD price suddenly went down.
Fyrstikken is trying to shut people down who are making quality contributions because they are criticizing his bot. Please reconsider sending any funds to this bot. You may receive a much lower vote if the bot uses its SP on downvoting others which decreases its SP.