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.
It won`t reduce face-merit-giving, because nothing prevents people from clicking on the button several times for different posts and sending more than one merit. This will take more time than now, but it certainly will not stop those who send 10 or more merits. There are a lot of questions to the merit system, it is not perfect, but it's impossible to solve them all at once. I think that not much time has passed to see, analyze and correct the shortcomings of the system.