I think that after this innovation many speculators will start trading merits. In my opinion, it is necessary to watch out for this.
I also hear about seelling merits but still i dont know how they will do that since the system is new and it is only limited to 50 merits you can able to send (correct me if I am wrong). Mostly now the people is just figuring it out how they do that .
-Merit (Dislike) is necessary too.
As stated in the post of it is necessary to add demerit they will add it the reason why it is not added is because they think the merits alone will fix those spamming and shit posting