Yes this is typical behaviour, albeit fisherman, the public or another Kiter. In my haste of leaving Pinnaroo, over a period of 3 years, I have left 3 or more tethers on the beach post, only to return early the next day to find it gone. Now I triple check to ensure I have gathered up all my possessions before departing.

With all the tether 'going' instances...there's been a few... I thought I'd mention I just have it on the back of my harness have done for years

It serves its purpose helping tow windsurfers in if there mast breaks etc ..or collecting&dragging a foil/wing that blows downwind by attaching it to your back etc...or attaching a second lost board..(etc)...

Then when or # if # I need it to land I just dangle the kite at 9 or 12 or wherever off its load &where there's no hazards...and whip it off and put it around the post ..
It's not very difficult to do and then noone takes it ..

Just mentioning this

P.s glad U found it