We have a family group chat, my mum, my brothers, me, my husband and my brothers wife (SIL)
I just find her so rude. We all message each morning just to say good morning to which she never replies or messages good morning to us. It takes just a second of your day? Means a lot to my mum, her MIL who lives alone and can be lonely. Why can't you just say it?
She very, very rarely engages in conversation. If you @ her directly in the chat she will reply (which leads me to suspect the chat is muted and she only gets notifications when tagged...)
Only one in a blue moon do I click on the chat and see two blue ticks, and when I slide across she is the only one who hasn't read them. All the messages in the chat will be grey ticks for weeks at a time until one day they'll randomly be blue where she's finally clicked on us (and there must of been hundreds of missed messages by that point)
She will very rarely send a photo or video of her kids, to which I just ignore. If you don't want to bother with us I'm not bothering with you.
AIBU to just remove her? Clearly she doesn't want to be in it, so why does she need to be? It is just so rude.