Seeing as there are arguments in many ways, I'll make my call. The fact alone that in five hours I have received answers from two of you drives me towards the combination of pre-rolling and DM judgement. I can, of course, roll things behind the scenes if I like, nothing should be stopping me from doing that. But here come the first and second rule:

[list]
[*] When making an attack/grapple/equivalent in combat, roll [b]all[/b] applicable rolls, including damage. I will utilize those that are needed.
[*] When out of combat, make a fair guess on what rolls might be called for and add them into the end of your post, preferably in a hider to not mix mechanics and roleplaying too much.
[/list]

The next matter is something about the amount of time people will need to post. I would prefer people to post within 12 hours from "their turn" coming up, but as I am fairly certain such a standard is unachievable, I will again ask on your opinions on the matter. The question is as follows: How long of a time would you be willing to wait for another player to contribute in the game out of combat/in combat and how long would you be willing to grant them to edit any requested fixes into their posts? After all, the game has to keep moving or it suffocates. Faster or slower, we need to agree on a pace.