It seems like a nice initiative but I just read about dust attacks, isn't it unsafe to post addresses here and there so that people associate the address with your username?
If the idea is to be anonymous, why publish addresses?
I know how to sign from an address, I have Electrum installed and I don't need merit. I have enough and I can't even spend them all.
Well, it does no harm to post your wallet address. It's more like your local bank account number which, you can just give it out to just anyone and everyone with little or nothing to fear. Hence, there is really nothing wrong in doing that. Besides, how do you expect to receive if you don't give up your address. I get you being scared but the point is;
Dust attacks are likely to occur more often, having shitcoins or coins with less value sent to you as it can happen to just anyone within the cryptosphere. The dangers of it is constituted in your trying to accumulate these series of shitcoins or low value coins to previously accumulated once hereby, creating a link or chain of wallets and possibly, there could be an unofficial flaw in your set-up which they capitalize on.
Again as per having a enough merit, it's good that you don't base your effort on accumulating them but, having a lot more if possible isn't a bad idea and you should. For that which is enough today, might turn out to be less significant tomorrow.
Give it a trier and sign up.