There's a thread on there atm where the OP has given someone a lift to an activity for the past five years.
Of course, rather than sort it out face to face or over the phone, OP is sending messages drafted by mumsnet. Really stupid, martyrish, passive aggressive mumsnet "zingers" instead of simple clear communication. The woman called the OP crying and confused after receiving one of the messages.
I dunno, I just feel a lot of pity for the person on the receiving end of this who has acted rudely or thoughtlessly, but obviously assumed after five bleeping years of nothing being said that OP was OK with it.