I am not an "old" timey comic book reader. I didn't start regularly reading comics into well into the 2000's.
When I go back to read some of the really old comics from the 60's and such... they are just sooooooo dense and compressed that it is a chore for me to read many of them. I am not used to it and for me, it doesn't feel like a good fit for a medium where I feel the art should tell a chunk of the story.
But... when did the switch take place to decompress to allow comics to breath a little more (which it need IMO)... and then when did that initial decompression turn into this 12 issue arcs where it takes a year to tell a story and you commonly have issues you read and nothing really happens at all? Who pioneered those switches?
EDIT:
To clarify..
1. when did decompression start? Who pioneered it?
2. when did decompression turn into "stretching the plot." Who pioneered it