There is no need to quote an opening post in full if you are replying in a thread, and nesting the quotes is even worse. The net result is that a reader will probably skip over your post, and not bother with your reply. This is certainly the case with me. I've even seen senior members just post the quote without adding a comment.
Or adding things like "ref" where it isn't required, just on its own...
It gets extremely annoying in spam megathreads too as, chances are, someone has already replied with something very similar.
SMF has the option to remove nested quotes. Do you think it would be beneficial if this was implemented here?
That's not a great option though is it? With things like the FTT forum where that is enabled, you end up with comments on two separate quotes (like this one) and then nothing....
It's better just to not quote anything if we're going down that road...
OR maybe you could split it into two quotes but I don'tt think that comes with SMF and would require a bit of coding from theymos.