Not every one, only few sources with more than 500 monthly allocation gives that much trying to burn out their sources - everyone likes to do that but those of us with limited sources try to manage it so we don't go out of it easily.
You mean you may not be capable not doing that? If your merit allocation will not make you be able to do that, just be doing it like you are doing it. But I check your merit history now and I see you giving people up to 10 merits at times while 5 merits but maybe not common. Although, if you think you want to increase it for people to be able to send to others in one way or the other, I do not think it is necessary.
I like to make my decision based on what the community wants, I'm running an open system so I think the question is valid in this context.
It is just an advice. If you are sharing the merit in the right way, we know. We know that you are trying.