I suggest that before people pontificate about Travellers

No-one has Jim.
Just saying that the signs are not "common throughout Britain" and that we are not "deeply racist."

Also, no-one is saying, "if you don't live here then you have no right to comment"

Comment as much as you like, but allow us to tell you what is common throughout our country and what is not.
Whatever you have been told, we know the signs are not common throughout Britain.
They are extremely rare, if they exist any more at all.