Are there any rules?
There are a few basic rules for using WhatPulse. The primary rule being that you are only allowed to submit the statistics that you generate yourself, do not install the WhatPulse client logged into your account on other peoples computers.
You are also not allowed to use any external programs to generate fake statistics. Detection of this will get your account (and statistics) removed. Only the official WhatPulse clients are allowed for statistics generation.