Hi.
The problem is that some canoeists do not recognise the right of the WUF to dispense "in and out points", and see it as their right to paddle. After all, the river is owned by us all

.
As a sometime canoeist myself I had some heated discussions on
www.songofthepaddle.co.uk about this. While most canoeists are sensible, there are a few militant ones for whom common sense and good manners mean nothing.
See also the article about canoeing on the Wye Gillies Association website at
http://www.rwga.co.uk/