Things I will try to remember in the future:
1. If someone's wearing a yarmulke, they're probably not intermarrying. (Discuss?)
(No, they probably did not put it on for the sake of a civil marriage ceremony.)
Also, they presumably deserve to be nidun l'kaf z'chus about this.
2. Not every Jew has a Jewish-sounding name (or uses their Hebrew name).
3. If you're not sure about a situation, maybe you should ask. (It might also be a good
idea to ask about your concern directly in case it might be sensitive as a follow-up.)
4. Maybe don't post about people without good reason, or at least some reason.