Most of the local boards have dedicated moderators who evaluate published posts and delete those ones that have the vicious style and/or dull/irrelevant content.
For instance, Russian board has two high-skilled mods who perfectly cope with their duties including that ones which are relevant to improving posting quality
I also share the idea expressed by 1miau above. We are not moderators and users which translated (and propagated) this campaign are also not moderators. We simply tried to improve, somehow, the overall posting quality in local boards. So it's not about a moderator being good at his job and deleting posts of zero value, but about users themselves, which can improve theor writing quality.
Looks like I've totally missed that part...
I've just sent a PM to roksana.hee and Latviand and asked them to give us a quick update here about these translations.
Thank you, 1miau! Let's hope they will respond and come back with some good news!