So, if I send merit points to another user it will be deduced from my account? Most of bitcoiners are holder by nature I don't think they will spend their points even if they cross a good post ( maybe they will do if you pay them well   )

It will be hard for moderators to check all members posts if they ask for their merit points (10 constructive posts), it would be better to use a Demerit system to punish shitposters.