So apparently for some weird reason, it resets at 3-4PM EST.

I don't know why they can't specify WHEN it resets, or even let you know how many posts you have remaining, though.

That's the LEAST they could do. And if they wanted to prevent trolling, or flaming or what not, why not a 3-4 hour cooldown once you hit your post limit? 3-4 hours is plenty long enough for a moderator to ban/suspend/etc a troll if someone was trolling and hit their post limit, but yet it isn't so restrictive that it is impossible to engage in any meaningful discussion.