I think he/she is trying to get banned?
Regardless she/he spammed caps frequently.
http://cloud-4.steampowered.com/ugc/35223487254209363/0EBDF79C5CF8932FB9D5EDB3313E5414CEC8943E/
http://cloud-2.steampowered.com/ugc/35223487254197914/EED7239AF48C08E6B078FC1A8DAB9C19E9588443/
http://cloud-4.steampowered.com/ugc/35223487254201624/74EA82CB88E0FD8276EE511A883C8FB55F7CE763/
I have a few more but these should explain it.
I gave him/her 3 warnings and she showed no signs of stopping.