Remember.
Graham Lineham's tweet about bollocks is in the context of seeing women first hand have their right to say no to being filmed ignored and then were deliberately harassed.
He has then seen some of this group post pictures of themselves in the women's again willfully and deliberately ignoring the law and women's lack of consent.
He has failure upon failure of the Met Police to do fuck all in the face of actual death threats to women.
So he posted if you are being harassed and intimidated by a male and the police do fuck all, it's legitimate to knee them in the bollocks to defend yourself.
The context of his tweet very very much matters.