we didn't know that the patch was going to create this issue until after it was in place.
To be fair, no one knew it would cause issues, and it sent an uproar on the official support forums for the software, this was a security patch that NEEDED to be done or else the forum could have EASILY been hacked because the hack was made public to every wannabe haXor out there... As for no other forums doing it any and all vBulletin forums that did the patch were effected, it's not just the RPF... If they didn't do the patch then the sites are wide open for attack...
Also as I have said over and over again, the problem lies with your computer and your browser, not the RPF site... I know it's maybe hard to swallow that your computer is the problem and not the RPF, but in this instance it is in fact the way it is... There is nothing that can be done on the RPF end anylonger, it's a problem with your computer... If you are still getting logged out it's because the RPF changed the keys many weeks ago and your computer is for one reason or another refusing to take and use the new key, instead your computer is holding on to the the old key and keeps trying to use the old key that is no longer valid...
The solution is simple, delete your cookies, all of them in whole and get new ones from the site with the correct key... This proceedure varies by browser and OS but has been outlined pretty well here, if not Google will provide the steps...
no be installed for questionable beneficial results?
Well to be blunt, there was no question in any security wise persons mind that this patch needed to be applied, the key was no longer secure across the whole vBulletin platform, and any wanabe haXor could could gain control of other account fairly easily with a little work... I'm not gong to get into how and why the original key was 'cracked' but trust me it needed to be fixed ASAP, as it was a wide open hole in vBulletin security...