@JPB,
That bothers me too. All anyone has to do to see the quoted sentence or more is to click on the little green letters at the top of the Quoter's post in order to see the Quotee's words, if one wanted to.
I understand why people answer the inveterate repetitive types, but think the respondents continuing to do that after a post or two cause more than half of the ensuing thread distructo derby.
I put one or two in the "cloakroom" once in a while when I want a rest for my own benefit, but that only lasts a day or two.
Then there is a spot in ignore-hell for temporarily-here-but-I- don't-know-that-yet trolls that I don't want to see on my New Posts list, and those I cull out of the ignore list routinely.
I have seven on long term ignore, a couple of fervid racists and some others that make my life seem shorter if I read them... though I cull those too from time to time.