Yes, sourcemod is in principle good (though there are still some problems).
And it is good for such things as non-working chat, for example
:
today i've written a very simple plugin which re-enables chat.
So, chat is working now on servers 1 and 6 !I do not know how long it takes for Valve to fix the chat bug, but it may take a whille that due to the preparation of the orange box. Therefore I gave it a try and it surprisingly worked
BTW, HLstatsx messages are also working on server 1 (they also work on all servers, but on sourcemod there was a problem related to the chat bug, so they did not show up on server 1).
P.S. There is a small problem that chat does not show up in logs, but l'll fix it soon.