I reported it to moderator as a death threat and it got marked as "bad" so apparently the mod disagrees.
To be honest, the translation in the OP doesn't look like an obvious threat and hardly make sense (google translate didn't help much), especially the "life sentence" part. Is FinTechEU allegedly saying that he will put OP in prison for life or impose a death penalty on him somehow?
It's not even clear who is that post addressed to. There are 2 names mentioned but I don't understand the context.
...
I PM'd Xal0lex and asked him to have a look at it. A Russian moderator will understand it the best.
Wasn't it a Russian mod who marked suchmoon's report as "bad"? I'd expect local board reports to be going through local mods.