I am fairly certain you have never merited me before. But I can't easily check on my mobile device. But if you did merit me it's probably only 1 or 2 merit and I think deserve more...
Suchmoon hardly gives less than four merits at a go 
, he's adopted the "4" trademark.People can get merits for funny posts in WO. Yes, human need to smile and funny posts serve its role to help people have funny moments. Hence, such posts deserve merits.
And I do not see anything wrong with it at all, giving merits is subjective, and if a user finds a post funny, comical, interesting and whatever or however it catches their interest, giving out merits isn't wrong at all, doesn't matter the thread it is.