[Plextalk] Subject lines

Hi, Can I ask people to put meaningful subject lines in the emails when they send to the list, and to also change the subject line if the topic changes? I had several messages titled Plextalk over the last few days, and they were about several topics. I understand it is easy to just reply to the messages, and if you were involved in the conversation, then it is easy to keep track and just reply, but some people who weren't reading the original email may not know what is going on, and for those receiving the digest version, they will get a lot of topics marked the same with no clue about what they were about. Spreading the love, Andrew.