Well, there are pros and cons to both sides. On one hand people could get some really interesting arguments going on. We could type in a comment on someone's reply too, like "Hey, that's an interesting point" or "I hadn't thought if that point of view". We could also GET RID OF THOSE STINKING FLOWERS!!!!!!!!!!!!!!!!!! There wouldn't be any need to do so. We could simply like an answer if we didn't want to reply to anything.
BUT I also think that being able to talk back and forth could make controversial posts or comments fodder for fighting and hurt feelings and more. I mean, how many times have we gone back through a question and the comments and seen ETA....blah blah blah...ETA...yell yell yell?
It's hard enough when you post a question about something that is painful or means a great deal to you and someone picks out a thought or word you used and starts a line of thought on that single thing and your original question isn't even answered.
I know when I've asked a question and had cranky answers I tried to use the SWH and it was a foot long before I responded to everyone who said something that seemed to need more clarification. So if we had the ability to respond back then it might have gone even longer.
So I don't know. I would like to be able to respond to others sometimes that posted a comment on someone else's question but not enough to send a message.
If the moderators are listening. Please delete the flowers. I don't even go to check messages or anything. It's too time consuming and drives me crazy.