Sometimes I'm forced to ignore someone on my team for some reason. Can a player I've ignored still see my chat/pings? Can I see their mini-map pings?
They can still see everything you say in chat, and all of your minimap pings unless they ignore you as well. You will no longer be able to see their minimap pings.
The commands to ignore someone for a single match is: (entered into chat)
To ignore someone permanently: