Personally, I'm against this idea for one main reason: there's going to be some kids getting up and getting ready for school at that hour (be it due to school starting at the 8:00 AM hour or having to travel a distance to get to school). As such, kids may want to watch some cartoons before heading out. While I can see airing something like Looney Tunes for Flintstones on that block, the bigger issue involves advertising and the bumpers, and personally, I don't see this working due the possibility of the bumpers and ads (especially those for horror flicks) making the kids feel uncomfortable.
Toon Addict for Life and "gated community" member since August, 2002.
"ph34r t3h cute ones" -Megatokyo