I’m itching to respond but I know it would be childish.
A relative we’ve met only once has posted a sarcastic message on another family member’s social media (likely not realising we can see it) saying “please thank Pithy and Mr Pithy for our wedding invite but it didn’t arrive in time 😂”
We’re more amused than annoyed. It was a lovely small wedding with about 50 close family and friends. Sarcastic relative seemed really nice but we’ve literally met them once some years ago (it’s a somewhat long lost family scenario).
So, do we leave it? Or reply saying sorry you weren’t invited? Or think up a pithy response?