Thanks. I use minnowbooster myself on my comments with a 0.1 SBD investment because I get the feeling (I might be wrong) that below a certain threshold a comment doesn't "produce" anything (no SBD, no SP) and then the effort of commenting would be wasted. Even if the payout is not favorable, I get satisfaction from seeing a steady trickle of 0.002 SP entering my rewards from almost every comment I take the pain of writing :)