Optional: if you think the spam is really getting out of hand, you can probably give the user red trust.
Eh, as much as I'd love to tag shitposters, Theymos does not want members doing that, DT or not. The only thing that should be done if you notice someone spamming/shitposting is to report their post(s) to the mods and let them deal with it.
How about tagging them for promoting a scam, a ponzi scheme (See their Investbox,
https://yobit.net/en/investbox/), a site which facilitates & promotes pump & dumps, and just outright scams their users by fraudulent tickers. (
https://steemit.com/yobit/@gandalfthetartan/fooling-the-traders-from-russia-with-love)
1. Yobit take an established coin Omise_Go (OMG).
2. They then quietly create their own, useless coin, entitled OMGame.
3. Listing OMGame on their market using the ticker (OMG) at a handful of Satoshi cheaper than current market price they drive up hype for discount purchases (no note of OMGame is made to the consumer on the trading screen).
4. Volume is artificially kept high thanks to exchange wash-trading.
5. When people grow wise to the scam, Yobit delete the coin, leaving traders out of pocket unable to sell elsewhere.
6. Support emails in return claim that the coin was a 3rd party technology that no longer met the exchange's T&C and Yobit is not liable for remuneration.
Now we haven't even talked about the new IEO products they're offering. They switched from Pump&Dump ICO's to IEO's, which are basically an even bigger sack of horseshit (or simply renamed?).
https://yobit.net/en/ico/timer/They are conducting IEO for coins that do not exist - it's not a project. They make a paid "SHROOM" let's say, and that's it, new coin added. It's to generate profit for those who get in early - a kind of gambling game. It can be profitable or very taxing. I guess nothing wrong with that and up to each use to play their part or avoid it.
Mind you, this is a quote from someone that actively participates in them. (And even he can't make it sound like anything but a huge freaking scam..) they don't even offer any product at all to their users...? (Which is somewhat the case with ICO's, you get a withdrawable token, (which is usually not worth shit either, but still.))
People who promote ponzi schemes are almost always tagged instantly. I don't see how this is radically different..? (If not even worse.)