I don't mean bounty entries at all. Should I stop doing bounty for merit? Of course not. I just started earning merit. I've made 2 posts 300 words each and got nothing, I thought I posted usuful info. One of the post disapeared. I think it's not so easy to earn merit as you said. Anyway thanks for the answer.
Even if you have posted a very long essay here, that doesn't mean it is quite useful nor constructive. A single liner post can also gain some Merits, ya' know?
Don't get stressed if you didn't earn some, being knowledgeable here is also a blessing, with this we can have a serious discussion together with the old members here and also with that, you can enhance your abilities to write some useful context.
And for the last tip, I think it's better if you double check your posts before publishing it to the public, in order to prevent some typo-errors that can be misleading to the readers.