What he meant is this likes are being earned by member so this 'like' option has a lot value in DDF. With such posts value of 'like' function will reduce.
Such things doesn't take much time to spread.best example is that 'nice share bro' thing. You know how irritating is that.
Seeing you posting like this ,more members will start doing this on even unnecessary things. E.g.People wants to say Good night, like this post.
So it's a request to you not to ask for likes even in such way. We don't want ruin your happiness but to express it words are more than sufficient