If you support this neat idea, then say so, if not, then don't post.
Inb4bush.
The point of making a suggestion is try to attract the attention of an addon-maker. Said addon maker, upon viewing the topic, then decides whether or not it's feasible or a decent idea. The amount of responder support for the idea influences the addon-maker's decision. (If everyone seems to hate it, that may discourage the addon maker).
By barring negative comments (which you can't...) you would be making that entire part of the process useless. If all you want is people to agree with you (thus making no real discussion) why aren't all suggestions just locked? If you wanted to brainstorm possible ideas for this, maybe in general discussion?
Just due to that statement, I am obligated to come up with as much negative support as I can to try to balance out this topic.
If you actually red the entire snow mod topic, you would know that the snow goes through bricks. Meteors going through things wouldn't do much... The snow mod works off of particles (Snow particle in this case). Particles cannot actually influence other objects such as bricks and players and thus a simple modification to the snow mod to allow meteors would not work. You would need something that spawns actual projectiles in the sky, going down. If you're making a server in which you want this to happen occasionally and the game is in a static area (City RP, for example) then you can just rig up some invisible bricks over the build that spawn some projectile aiming straight down. (Rocket or airstrike would work, but making a new projectile shaped like a meteor wouldn't be hard).
Also, if these things are very large there is the possibility of tremendous lag. If this is made into a mod that actually makes projectiles in the air (Have never seen this done...) then these projectiles would be falling over the
entire map. Imagine how many explosions that would be. Then to want to add on fire effects and craters on top of that for each meteor is really infeasible.
/rant