.....You're underestimating me... I can easily do it if I click "+Merit" on the wrong post - I get confused quite often here because "Report to moderator" and "+Merit" are my two most-often used features and they're on the opposite ends of a post - and then don't pay close attention to the username on the next page.

Merit sending should happen on the same page. Or at the very least the page where I enter the merit amount should display the post content that I'm meriting. There's definitely enough space on that page. And the damn zero default should be removed - I can't think of any good reason to have it there.