The conversation count is important for two reasons. Firstly, I may have already read the first message in the conversation, and would thus normally skip the thread if I didn't hear that there were more messages in the conversation. Thus, if the conversation count is read early I can know that new messages have arrived which might be worth reading. Secondly, if I hear the subject and preview and the message sounds uninteresting, I'd normally delete the message immediately. If, however, I knew that there were many messages in the conversation then I might be more interested in opening it to see what the later messages said.
As for how to read the messages in a thread, first open the conversation, then stop interacting, then use VO and the arrow keys to move between the different messages. Cheers, Nic -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To post to this group, send email to macvisionaries@googlegroups.com. Visit this group at http://groups.google.com/group/macvisionaries. For more options, visit https://groups.google.com/groups/opt_out.