For the average person making a bit on the side on youtube tce it's going to be meaningless like it's always been for people making a it of extra cash every month/other month. Once a track record of regular higher value income is seen then little bells will start ringing in a taxman's head somewhere out there. They simply don't have the resourcing to follow up on every little bit everyone is or isn't making.
My workmate on the other hand raking in almost £40k a year from their AirBNB side hustle will be affected, I shall forward the link on