It is not common to meet someone you know at a local nudist club but it does happen occasionally. You both have a common interest in your privacy. I am retired from a very large company and when working only met one person who worked for the same company. When we saw each other at work we treated each other normally and we had a common interest in our privacy so it was no problem.

I made it through our son and daughter bringing a fiance/fiancee and although that can be momentarily awkward, everyone gets over it quickly.

Its worth potentially encountering a few moments of being awkward to be able to be a member of a local club and enjoy being nude on a regular basis.

Where is local?