For quest 143 "Ouch" option 1 completion it says "Keep this card; it is a WSG contribution". What is a WSG contribution? Should it be WTG (Winning The Game) and the quest card is worth one influence point?

WSG = Wasteland Survival Guide. If you follow that questline you can get the guide.

There are a couple things like this. One of the vaults has you keep cards as “endorsements”. It doesn’t tell you what they are but you find out if you follow that quest line