That is good! I don't know how many I leave, kind of depends on the day and how busy/bored I am, but as I reply to everything comment-wise and many replies as well, I do tend to make a few comments a day at least
Heh, just checked. Been on DA since 2008, but only active on it in the community since 2012 or so. So that's 4 years of nothing. Still? I've left about 7 comments per day, with the ratio of my commenting to others to them commenting to me at 110 to 10, lol.