If you were to log in, you'd be able to get more information on your fellow community member.
Consider an alternate view to the ACS (ArsDigita Community System) assertion of insulation by using open source components. It is January 2000 and the required release of AOL server is the closed source version from October, 1998. Also the 'open source' license is strongly implied to be the GPL, but no copy appears on the referenced pages.
So, why trust your software to a system without a strong enough development community to get a full release out every year or so? The trade-offs would be to use the Apache webserver with its larger development and user community group, and to establish the ACS for a subset of Apache configurations.
It is wise to look past the open source label to see if it provides actual investment protection.