I think twitter is pretty polarizing in the journalism world since there is a lot of competetion for the old standbys (**** the BBWAA) who feel entitled to only their opinions being heard. I kind of thought of this while listening to the BS report last week and BS was talking about the Seinfeld Today twitter (
https://twitter.com/SeinfeldToday) and he said something like "that was funny for like 20 minutes" very smugly.
I think to a lot of commentators/sportswriters out there Twitter is a huge threat to their monopoly and they hate it.