[Elecraft] Digest questions / new K4 list or group

[Steven G. Steltzer]

Am I missing something in the settings? I get the digest emails. However they are usually very long because a lot of the posts contain the entire previous digest. Takes forever to scroll through to get to the ones I wan to read. I assume this is because senders hit "reply to all" and do not bother to cut the copy of everything out? Yet I see guys saying they can delete individual messages that don't interest them like you can do with a groups.io list. What am I missing? 

Thanks
Steve, WF3T