I wrote a recent comment about that but I can't find it. We've sold a lot of SBD and bought about $100K worth of STEEM (it is worth less now since the STEEM price has dropped). The SBD price is well below $2 and nearing $1 for the first time in months. Can we take all the credit for that? Certainly not, but it probably does make some difference. And we have certainly helped fighting spam with delegations to spaminator, mack-bot and broombot.