Yep. That can be really annoying, especially when you're following an interesting conversation where some poster continually does that throughout the thread.
Using some sort of mark to differentiate another person's words is also a show of respect. As a child, I was taught that that is one of the primary reasons for using quotation marks.
Hi, flier.
I remember how good it was in earlier times to see quote indicators for whomever it was we were replying to, as well.
My own problem with continuing that habit is greater cell phone use. I can’t do that on a cell phone, the keyboard is too small to go through all that, and on my lap top, I can’t even convert type into italics, so I remain in the dark ages with use of quotation marks. But, yes, I attribute the laxity on cell phone use. A lot of us are not, I find, all that electronically capable.
Darn good to see you, Windflier.