Selling upvote

Hi community, how are you? wish you good health always. As a loyal user of the Hive platform I am very grateful that many witness hives have contributed to this community, one of which is Hive account@gtg, he has created a chat media for hive users, you can see it in his post below.
Witness update brand new hive eclipse is coming

But this morning suddenly I got DM from an account in the name of klngz, I got an offer to buy upvote, yeah. You can check whose account it is yourself.

I don't know whether the offer really came from that account or not.
This is very painful, because if it is true that buying and selling upvote is on this platform, it is feared that disaster will occur like the previous platform/steemit.
Hopefully this hive platform can be better than its predecessor, and hopefully upvote sales will not occur in this extraordinary platform.
Thank you
Regards Hive account@kharrazi