MWeb is clearly "targeting" users who contravene the T&C agreed to when the service was started.
All MWEB users have technically contravened the T&Cs, so when are they coming for you?
They do this to protect the service for the other 99.99% of paying customers who do not contravene the T&C.
The service contract exists between individual users and MWEB, not other users. MWEB cannot deflect responsibility for their own network onto individual users.