[implements]

Britain’s https://www.mumsnet.com/ is far from vapid:

“When Mumsnet speaks, politicians listen”

https://www.bbc.co.uk/news/uk-12238447

Elsewhere: “Professor Pedersen believes Mumsnet’s popularity is partly down to it being a place where women can talk freely about politics without being drowned out by male voices or being subjected to the nastier side of other social media platforms.”

[teddyh]

You found a single exception to baisq’s proposed general principle. This is not a good enough argument to refute it.