Scared of mid-airs

It's one of the conventions we've established here for subject lines.
Others a

OT - off topic
FS - for sale
POL - political discussion (sometimes a thread moves that way)
PED - pedantry (little nitpicking having nothing to do with aviation)

The last two were recently added. Although nothing like this is ever
official on Usenet, if we adopt them it helps people to filter out stuff
they don't want to see.

There are a few others which escape me at the moment. The idea is to
start the subject line with one of these if the topic warrants it (or to
modify the existing subject line thus if you are replying in such a
manner).

For individual people:

ZZZ for Zoom (Jim C.)
JJJ for Juan J.