Some of the reasons we cannot and will not provide you with *exact* figures as to how many users will work on what server are -
We cannot account for hacks.
No two boards are using the same options.
No two boards are used the same.
No two servers act the same. We have stacks and stacks of servers here, all identical, all bought at the same time. No two of them run exactly the same.
In light of that it would be absurd to tell you "get this equipement, it will run a board with this many posts."
Because we all know that if the board or server had even the slightest hesitation running exactly as we said it would then who is the bad guy in the situation?