"Posts per day online" [PPDO] is a nice indicator of what an account is doing or if its logging in, posting then logging out again. It also highlights how much listening they do alongside their talking, ie if they're just hear to preach about something. Looking at the gif, the PPDO of ACCTSeller is just 12, while the quickseller account is at 35 so that doesn't really make sense to be a shill.

for reference, the really obvious shills can reach 80-110, while generally spammy members can also be found as high as 60-70. Most temperate members will sit around 30-40.

>110 megashill / megaspammer
80-110 likely shill
60-70 spammer / 'main' shill account
30-40 normal people
<30 sensible people