If you follow the links it appears someone has complained to the Co-Op that they were taking out advertising space in the Spectator. It would appear that the Co-Op has immediately capitulated and said they'll tell their media package providers not to place adverts in the Speccy forthwith.
Bit like the endless targeting of companies on here.
Mostly it's harmless, in the sense that if a company wishes to withdraw advertising thus cutting themselves off from potentially lucrative marketing opportunities on the whim of a tiny subset of the population, that's their decision. (Still struggling to find a decent cake-making alternative to flora, mind you.)
Sometimes it's more sinister though - as when the GMB pulled out of a partnership with Mumsnet to provide support to women at the start of the Covid lockdown because some people on twitter said "MN - they're all transphobes." (And furthermore did it at a time when it was rapidly becaming apparent that women - shouldering more of the burden of home ed, more likely to be in caring professions, more likely to be part timers - were likely to be disproportionately hit by the economic consequences of lockdown).
Sometimes it tips over into abusive - as when the Body Shop trolled JK Rolling about being a domestic violence survivor as part of their woker-than-woke politics. That was fucking unforgiveable.