It's only when you use ReloadAllScripts that they get cluttered. It's because the ReloadAllScripts would create new pointers to Actors and whatnot and then store those pointers into the table but not remove the old ones.

Wow, it's been a while since I've done this stuff, I'm amazed at how much I remember. On an off-topic note, how does B26 fair with modding? Easier or better than B23?

Absolutely identical, just with slightly more Lua toys.