1. The process of sending merit seems a bit annoying. You've to go through another web-page and select number of merit to be sent and then send it. IMO, it'd be better if it could be sent just by clicking "+Merit" button right within the thread.
2. It'd be much better if you guys allow only one merit by the merit-sender per post. This will reduce fake-merit-exchange or fake-merit-giving. There're people sending tens of their merits to a single post which clearly seems like something fishy.
Yeah, there should be a way to give merit without leaving the page. Maybe clicking it multiple times moves the merit up by one each time. I disagree about only allowing one merit per post though as a person writing a very detailed and constructive guide probably deserves more merit than just someone who makes a short but informative post. Besides, it's probably easy to spot abuses when people are giving a shit load of merit out for posts that probably don't really deserve it.