Infraction: 6. Do not post unless you have something new and worthwhile to say.
Message to User:
Use a PM to thank someone.
IP and WP used to be 20% and 50% respectively. A while back they converted it to a PPM such that autoattacking with a weapon of any speed would give the same number of poison procs per unit time. When they did so they selected the proc rate such that a 1.4 speed weapon would still proc at 20% and 50% (respectively). This resulted in PPM values of 8.57 and 21.43.
In short: the observation about a 1.4 speed weapon is designed to motivate why the PPM values are so odd.
Gotcha. Thanks for the elaboration.