Terminate unused wall jack?

I am not currently experiencing any issues but had a question.  I currently have a SWiM system with WHDVR.  I have 2 outlets that are connected to the splitter but do not currently have a reciever connected to them.  Should I put terminator caps on the wall jacks?  Any pros/cons to doing or not doing it?  Like I said no issues and I am tempted to leave well enough alone but wanted to hear any thoughts.  Thanks for the help!