Why not the ability to leave comments on channels themselves? Treat them like blocks too! let 's take a flat ontological approach
This is a bigger question, but why the division between "blocks" and "channels" ? What if we just say that channels are blocks that might contain other blocks. Thus we can have a flat ontology of objects.
The name is said to derive from the Dutch Dooddel, or "dead valley", with the "town" suffix added later by English-speaking settlers.