I searched that study and found no references to chat rooms. It's my theory that private offices and enthusiastic chat room use has the advantages of both.
I suspect there may be a generation gap in familiarness of asynchronous instant communication. The avg 18-24 year old sends ~100+ txts a day, 45+ goes to 10-15. [1] People who've grown up up using txts, face book chat, IRC, AIM, etc. seem to see chat as a "default medium" for communication, where as those without that experience (not necessarily just an age thing, plenty of 30+ who spent decades on freenode etc) some times have a view of "being forced to use chat" instead of just knocking on someones door.
I suspect there may be a generation gap in familiarness of asynchronous instant communication. The avg 18-24 year old sends ~100+ txts a day, 45+ goes to 10-15. [1] People who've grown up up using txts, face book chat, IRC, AIM, etc. seem to see chat as a "default medium" for communication, where as those without that experience (not necessarily just an age thing, plenty of 30+ who spent decades on freenode etc) some times have a view of "being forced to use chat" instead of just knocking on someones door.
[1] http://www.pewinternet.org/2011/09/19/how-americans-use-text...