Maybe adding a little helpful detail for admin -- please post one message per topic you have in mind; this will make sorting easier. So a suggested sample "Subject:" header might be
[pdconv16_r] Topic: World Peace through Pd
and then another separate message might have
[pdconv16_r] Topic: Incompatible harmonies support
But NOT [pdconv16_r] Topic: World Peace & Incompatible harmonies support
etc. Please don't worry -- this is not fuss or rocket science; just a suggestion that might make topic-gathering easier. No need (and not recommended) to tidy up. NOT RE-SEND multi-topic message(s) you may have already launched. (We'll probably find it easier to split-out a complex message or two than to start recognizing/eliminating duplicate messages. Thanks!)