maybe this is already possible and I just can't get my head around it, but is it possible to set the chat to display all the 'general chat' posts made in the entire game instead of only those in the sector of space you are in?
I realise this would be quite a lot of traffic but maybe with certain filters it could work (for example everyone in the starmap only)? it would certainly help when for example looking for teammates with infected etc.
Secondly, I have suggested this before but haven't found that this has been implemented (yet):
A specific channel for trade requests (WTT/WTB/WTS). Especially needed for those hard to find items. and easy enough to implement with filters for those that do want to look at it and those that prefer to keep it out of their chat.
In general I am quite happy with the variety of options the chat offers but these simple improvements would make quite a difference, also in improving the game community in general.