There is no other way to receive an easy merit! You just receive it by posting something meaningful and with a sense of course.
So work hard on your posts and make them constructive to have the knowledge they can read too !. The only really difficult for us to have merit are the people who prefer to give merit for their alts or is swapper they merit to someone else to take advantage of it.
Yes, it is true that you cannot easily receive a merit. You need to work hard for every post you make for to impress others because they are the one who can give you a merit. Give them the information they want to know and elaborate it so that they can give you a merit.