They've made the decision to 'no longer work with Mumsnet' because they want to 'treat everyone equally' because of their 'values'.
By this I'm sure they mean any woman who uses this site should definitely NOT buy their products. That would be an unpleasant association between mumsnet and their values that would be too much to bear.
Here is a helpful list of their products that they don't want in any way associated with Mumsnet:
Country rock
Flora
Rama
BlueBand
Lätta
Flora Proactiv
Becel
I can't believe it's not butter
Please don't sully their brands with any association from you, you horrid mumsnetters. Your money is tainted with unacceptable values.