To not understand how anyone could be so invested?

[itsjumanji]

Aibu to hate this phrase on mumsnet?

Do people say it to make themselves feel superior?

I think it odd that people can’t grasp other person find different things interesting ...

Well it is Mumsnet. 90% of it is made up bullshit!

Some posters do get very invested, and even over invested. There's a difference between that and just being interested IMO.

Also @PlomBear has a point.