the problem is that someone would probably need to keep such a collection up-to-date, which really is not very fun. there have been attempts at asking hypermotivated members to assemble the information and update it once in a while, and have it hosted by some staff members. because the staff members usually have hosting options, but no time and/or motivation to gather the info, while members who want to see such don't have the hosting etc and so on. but as mentioned, it's a pita to keep updated, which is why it died every time it was attempted.