It could be directed to via PM without having a direct link here or needing to pass the often confusing strictures of another place.
Enough people here straddle more than one site, if someone was looking for isolated sounds either here or elsewhere they could link to whichever places you decided to host it on.
Over time I'd imagine it would be hosted in more than one place and posted up by more than one person so if a host site went down it could bounce back to the surface.
Heck! This archive could even be the beginning of a new forum for project resources.
These sounds could be used by fan-editors, documentary makers and people making fan-films or fan audioplays.
If people put up threads with isolated explosion video or isolated model elements and the like it could be a real help to people making all manner of projects and they could be distributed in the manner I describe.