one must be the most wise guy in the planet to be able to post 190 posts/day, with 2 min interval between posts all in topics he is familiar with and without spam
I have personally seen many people making ~100-120 posts a day with a max of ~180 posts a day already being made by ChartBuddy...
Mods have said that you can even post every 5 seconds if you want, but the only thing you need to maintain is the quality, not just for your posts but for the forum too...