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.
1) This is most probably to prevent cases when someone may send merits by mistake. By asking for a confirmation on new page, this is prevented. Since merits are scarce, we cannot afford it to be spend by mistake.
2) I agree with this to some extent. Allowing someone to send up to 50 merit points for a single post is simthing I cannot understand. Only reason I can think is that it was intentional to catch members sending merits in bulk to alt accounts.