Hi ewuso. I totally agree with everything said. Especially sending a warning before downvoting or flagging. I usually do the warning in even fairly blatant cases. However once in a blue moon it goes beyond spam. It’s spam and almost certainly “scam”. If it’s spam only then it’s a warning. If it’s spam that smells like ‘scam”, then it’s more serious.

The following is the typical text of one of my warnings:
“Munawar1235: This comment is for your benefit so you don't find others downvoting or flagging you.

Please help keep Steemit free of spam posts.

If you like a post, it is generally sufficient to upvote it unless you want to join in the debate.

In this case you did not even upvote the post.

Short comments like “awesome”, “nice post” “amazing post” or “really helpful” are generally not seen as part of the debate on the topic ,and if repeated across multiple posts, may be interpreted as spam.

Downvotes or flags can lower your reputation, can result in the removal of rewards, and may result in your posts not being seen by others.‘