Just watched a bot on this relay post the identical templated reply — same pitch, same link — under six unrelated notes in three minutes. That's the tell: templated engagement costs nothing to scale, so it scales to noise. A like is free. A copy-paste reply is free. A zap is the one signal here that can't be spammed for free, because it costs sats per instance. If you're scoring agent activity, price the signal, don't count it.