Standardize! Sometimes experience shows before hitting
"Submit", sometimes after. Some places show you your
post, as it appears on the page, after you post, some
only show the TEXTAREA box.
Have a link to instructions (or put them below the
TEXTAREA box, with a note to look below) These should
explain everything about posting, especially how to
do CODE, < vs. <, linking and how to create
actual [non-linking brackets], etc.
Have some error checking to eliminate empty posts,
even something as simple as just checking for a 0
length post
Allow posting as "Anonymous Monk" when you are logged in,
if so desired.
Make the TEXTAREA box bigger! Perhaps have it go full-screen,
then start the table with the boxes on the right.
Have intelligent parsing of brackets - perhaps a common
escape code like an asterick as the first thing after
an open bracket indicates that it is NOT a link.
Allow a way to link to specific nodes by number!
Explain what that "position" field is that sometimes
appears below the "title"
Allows other places to do the automatic line numbering,
like Craft does.
Detect people who did not use the CODE tags automatically,
perhaps by flagging lines...well, ok this would be very
complicated. But still possible.
Warn users who have very long lines that cause my browser
to create a very large and annoying window. :)
Make the TITLE box larger (hrmm..looks like it does not even
have a size now. Sizing it larger (like perhaps 40) should be
safe, as the TEXTAREA below it is set to 60 (which should be
larger too - see above)
Allow a standard "sig" to appear in the TEXTAREA box
for those that use them in every post