Had a tip off about this one, an old Banksy tag still on a piece of festival fence at Glastonbury, this year placed in the new hospitality camping area (where the outdoor cinema used to be).
The fence around the outside of the festival used to be made of this stuff, painted green on the outside and grey on the inside. Given they brought in the ‘superfence’ in 2002, and there was no festival in 2001, this can only be from 2000 or earlier.
The way the letters are so straight and angular (compare this one from 2000) show it’s early too, and ones with an exclamation mark at the end seemed to fade away in about ’98 or ’99.
So yeah, the remnants of what Banksy used to do 10 or so years ago, still being brought back into public year after year.