https://www.youtube.com/watch?v=ObccgHQdos0
soon

sup'
i don't like the names of each rarity levels. Normal, Uncommon, Rare, Epic, Legendary are too common, if you could find new names this could be very cool.

awesome

Sorry i'll be rude but i have a lot of questions about this issue since it's not happening on my computer which is on linux too.

What OS?
What driver? nvidia? nouveau?
Driver version?
Factorio version?
Log file?
Save file?
Xorg log file?
Linux journal log?
Everything is up to date?
System uptime ...

Game got massive slowdown on FPS and UPS while posting huge message on console.

http://www.1mage.fr/images/5afterpostingzo.png

How to reproduce:
launch a game
open the chat console
type a very long message (WWWWWW...)
post it
watch your FPS/UPS dropping hard while the message stand on screen ...