Right now, due to a bug I assume, all players sitting at a cash table earn krill, including those sitting out. According to the info on the website, only players dealt into a hand shoud receive krill.

This should be fixed ASAP, I've seen people already exploiting this bug: join the table, check Wait for big blind, uncheck Auto post blinds and then time out when it's time to post the big blind. After that, stick around and collect krill. This is pathetic I know but nonetheless it is an issue, if nothing is done more seats will be filled by krill freeloaders.