Explain why we had that in the original RtB?
Because in v0002 and RTB and all those other mods, bricks were shapes, not a custom brick class.
Because Torque's rendering isn't exactly the fastest, having 1000-2000 of these shapes at once killed the engine. That's just not satisfactory, so kompressor wrote some optimization code that culls faces of bricks that are touching. Due to the way this works, it's impossible to have bricks arranged in arbitrary units - they have to be locked into the 'brick grid' for the engine to be able to tell what faces to cull to speed up the rendering.
Because of this, moving bricks on an arbitrary grid is impossible. This is why we can't rotate bricks to 45 degree angles or make stuffty brick vehicles. On the plus side, we can have more than a thousand or so bricks without dying horribly.
You asked for it to be explainedI'm pretty sure Badspot has already no'd brick vehicles basically every update anyway.
As for things I'd like to see made as part of v18:
A clientcmd to open the events GUI for a specified class, to allow us to actually use input events on things other than bricksI'd like to see this to allow minigames to be evented directly, as well as other things such as using events to control systems in other mods
Increase mounted image count to 8 or so rather than 3If we could have 8 or so images mounted I don't think that would be so many as to cause them to lag behind the player as I've heard they do sometimes, and it would allow us to do things like new "pseudo" avatar pieces (not nodes in the player but using them for mounted images)
BLBs included in resource downloadingI believe I have discussed this one before, would involve resource manager rewrites, lots of work apparently. Should be obvious why I'd want it though, even though I don't make bricks.
Host name/BL_ID shown as separate fields on master server output/serverSOs rather than the host name being part of the server nameWould pave the way for server favourites, in fact the whole server favourites mod with this change would probably only be twenty lines or so counting adding a button to JoinServerGUI