If you post here about the new merit system and say how you're not getting any while there are users selling merit, trading it, buying accounts, etc... instead of crying, you might as well just provide those usernames, since you know there are users doing it, and will for sure get some merit for contributing.
Crying here will get you nowhere and don't say that there are people that are abusing the merit system if you're not going to provide any username.
As far as I know there are some DT members has been making some moves about this matter. Actmyname is one of those people that really is trying hard to catch and put some red trust to those people. But I think giving red trust today isn't a good thing because some people hasn't understand how the merit system works. Some people thought that merit given can be removed which isn't possible.
Anyway, theymos said that merit sales, trading merit, and giving merit on alts aren't an issue.
Merit sales, transfers to aliases, back-and-forth trading, etc. are not much of an issue. All illegitimate merit will decay, and will account for a tiny and very expensive fraction of the total merit economy. It's basically a rounding error; fight it where convenient, but waste no sleep over it.