Actually you should get a notification in your bell tray, since hitting 1,000 posts will grant you the final 20 points bringing you from 93 points to 113 points.
Boo! Also, I've thought about asking ZT if he'd be willing to add some more trophy points, such as 1,000 reaction score trophy, or a 5,000 posts trophy, something like that... but meh.
I don't think it's even a helpful feature. Trophy points serve no purpose, whereas post count and reaction score at least show how active someone is on the forum.