I tried to get all the quotes under one edit earlier. I couldn't make it work I will try again. It would be easier if I could just delete some of my quotes. If it take me days to read a site then there is no way I can remember all the posts.
A helpful hint: if you use the quote button, it will always put the selected text in a quote starting where your cursor is in the reply box. If you want to quote multiple posts in the same reply, you can quote and reply to one, then add a blank line or two below that text. When you quote the next one, it will appear as a separate paragraph below what you just typed. That allows you to easily highlight it and copy/paste if you want to rearrange the order the replies are in.
If the replies you want to quote are on separate pages, open a second window on your browser. Use the reply box on one, then use the second window to reply to the other posts. Copy and paste from one window into the other to get all your replies into one post. This method works even if the posts you are quoting are all on the same page, of course, but since it isn't quite as streamlined it's often easier to use the first method when you can.