Shoutbox

if you're dead set on using this font. try editing the font to make every character larger.

EDIT: what about a script that every time you send a message, changes your font size, sends the message then changes the size back.

so you have ur font size on 12. type a message and press enter. the script quickly makes ur font size 20, sends it and then changes back to 12.

would that work for a script to do the job? not sure if it's possible, im just trying to give ideas that will solve your problem.