Being honest, I've skimmed through some of them but spent more than average on the others, but that's the way we filter and consume content i guess.
This is also how I write - I don't expect people to ponder every word, just find an area that they find interesting and build some thought upon it. It is nice when they relate it to the general arch also though :D
So as for a platform, mix is better, as for an author, they have a pattern and that depends.
Yep. People have to play their part, the part they are suited for, experiment if they want, but find their place. Not everyone is going to be able to play every role.
I find that long content (in general) doesn't get as many comments, but the comments are of much more substance than the short.
That's because people that are really interest give it mo time and thought.