As per documentation, reload does not support BBS carts.
However, the function fails without any error while trying:

-- does nothing (or not??)
reload(0,0,0x4300,"#vracing_5")

Could the function reports an error in such case?

I only had 3 carts for Heat Death and it was a lot to manage. Can't imagine what 10+ carts is like.

poor you

Should really boldface and change the color and add some exclamation marks on this one:

• reload() fails without any error!!!

Given that all the lines above it are kinda meaningless if you can't reload() from a #cartid on the BBS. :(