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https://steemit.com/@tomask-de/comments

Take a look and it should be pretty clear. Guy is spamming all over the place fishing for votes. He isn't reading the posts, just spamming.

@joe.nobel your leaving your upvote for a spammer?

It's clearly a bot that is voting with no value (super low SP and 50% VP). It leaves the same spam comment on every post and never once replies to anyone who reply to it.