its a stupid workaround
just type +chat in console
or make a bind like this
set pluschat "+chat"
bind x vstr pluschat
didnt try it but should work too.
this gives you about 6-7 chatlines, dunno how much exactly.
and in order to not have half of the left screen spamed with chat, i repositioned it to the topleft so i see 4 chatlines right above the kill messages..
but i hope thats not what you are actually thinking about the topic, cause one line isnt just uncomfortable, it is just not enough when your team uses binds in ctf/tdm and its even more annoying because of all the "friend has gone offline messages" that sometimes make the chat disappear before you can read it.
Why can't you spam mm2 in team games? Why can't you kick players after warmup? WHY DOES IT ALWAYS TAKE SO LONG FOR PEOPLE TO READY UP IN PUBLIC GAMES? WHY IS THERE A TIME LIMIT IN CLAN ARENA? IT ONLY COMES INTO PLAY WHEN THE SCORE IS 9-8 OR 9-9 WHICH IS TOTALLY NOT COOL.