There seem to be a lot of people accusing MN of exploiting the COVID-19 situation to launch Premium, who themselves have now launched or are heavily promoting their own forums to poach MN users in the fallout.
But the difference is their motives for doing so. For MN we know it is financially driven. For Tattle/mums.chat, what are their motives? I don't know the answer to this. Although there is some advertising on the site they have always said this was to cover the basic running costs. It is pretty murky.