There will be an automated thread posted in the subreddit every day at 00:00 PST.
You can vote whether or not to water the plant on any given day by commenting 'Yes' or 'No'
Every evening, the votes will be tallied, and if the 'Yes' votes are the majority, a pump will switch on to water the plant.
You can watch it all go down on the PLANT CAM
I think that covers everything. I'll check-in in the subreddit from time to time to respond to questions and feature requests. I'll also keep the water reservoir full, but will do nothing to interfere with the internet's will for this beautiful plant.
Please take care of my plant!