OP you can always use the "-" key (and with shift too(blocks sys messages also)) I dont think chatting or even reading and driving go together well
especially on the CTRA servers
If your crashing into walls while chatting then you are a, increasing your yellow flag count, and b, not driving with due care and attention, the latter could lead to an infringment of the server rules
I fail to see what could be so important to cause a driver to take their eyes off the road.
SD.