When my server load goes way high, my site comes to a halt.
So even if the XF new to take away some functions or even close the forum temporarily based on server load, eventually my site would crash anyway.
I know vB has that builtin (or maybe it's a mod), I just wonder how effective it really is?
Our (VB) forum is a football forum and as it's the end of the transfer window it's really busy (1500 users online compared to usually 500 or so). With search, who's online, etc enabled our server load is huge and the we eventually crash. By manually disabling search we manage to keep the load around 3 or so.
It seems like it makes enough difference that it would be good if XF could do some intelligent feature disabling dependent on load.