I can't read most of those (Russian) posts, but the fact remains this one guy ranked up a small army of a few dozen Jr. Members, who no doubt will continue spamming later on. There are many users with a large supply of sMerit (only a small fraction of the 600k airdropped sMerit has been used), which means the Jr. Member spam can be sustained for a very long time.
I find that Google translate is good enough tool for evaluating the qaulity of posts.
To counter this, I'm applying to be a deMerit source. I don't think this should be used against heavy merit abuse (50 at a time), it could be limited to a maximum of 5 deMerit per user per month. This way it deranks many different users without destroying a large amount of Merit.
The thing is that in case of small merit abuse transacations as 1 merit ,Negative trust is good enough, it would not allow them to particpate in sign campaigns which would stop their spam.
But in cases of bigger merit abuse transactions negative trust is not enoug to stop the damage, as you can see that there are several puppet master which had already gotten negative trust but had the chance to do a lot of damage by ranking up 10s of spambots.
Those who have gotten negative trust for merit abuse should be stripped of their smerit for good.
In general i support the idea but only if the demeirting sources are only the most trusted memebers in forum to avoid more trouble with possible confilct resolution.