Thanks. I fully agree. For the spamming from the bot I normally tolerate. For spamming from new user, I just mute him. However, the spamming I am talking about is from a user with the rep of 69. It's different.
I reported this to steemcleaners, but the member of steemcleaners might be a friend of him and doesn't admit it's spamming.
Furthmore, the spammer came to curse me, harass me, threaten me, and down vote me. He also banned the users who supported my post from steemit.chat and claims that I own many accounts at steemit.chat. What a lie.