I show my current card (open water instructor) and I don’t seem to have a problem getting buddies. In fact, it’s the opposite. More people seem to want to dive with someone that is considered more qualified and trained than they are for safety reasons. I don’t mind helping others either so it works out.
I’ve heard some people say they only show a recreational card (not divemaster or instructor) because they don’t want the liability if something goes wrong. But that’s just silly talk because you’ll be responsible to help regardless. You’re not liable for anything as long as you stick within your training. However, if you’re afraid of being sued, get over it, because anyone can sue you for any reason...but chances are they won’t win in court if you proved you did all you could within your training. Besides, that’s what insurance is for right?