I too am having trouble reading the digests. I have held off commenting as I was trying adjust to it and also see if I could put my finger on what the problem is but I think Michael has hit on it…
I’ve tried both the html version and the plain text version. The html version was not formatted by my email client (MS Outlook) so it was really bad. The text version is better but still it is difficult to scan quickly. With the old system, I could quickly scan the subject line of a message and decide if it was related to a subject that I knew enough about to help or if it was something I wanted to learn more about.
Also in the digest, I am seeing “ ” quite often within the text. This makes it even harder to read.