I don't know about that ability, hmm. LUVshares had been operating fine with Resource Credits for some time now. However, it has been growing in usage and reached the tipping point where RCs diminished faster than they replenish. Getting rid of the invoker's username (and thus cutting the replies in half) will likely be only a temporary fix. The solution(s) going forward will either have to be (a) increasing Hive Power to the account, (b) increasing the required amounts of LUV needed for differing levels, or (c) lowering the number of LUV/day allowed. We'll see how it goes. :)