Well, yeah. You can't expect people to be seeing every single post, and this is really only a problem if you really want to rankup, but basically post spam, and in an attempt to do so, make a single high quality post. People who consistently post quality should be rewarded.
Are posts that receive more merits displayed on top? If so, there can be some benefits. Good quality posts can be seen easily. Accounts gaining merits unreasonably can be seen easily too.