I had an experience of one WWOOFer making other WWOOFers feel tense and uncomfortable and after a while I felt the same way. At first, X presented a positive and spectacularly extrovert personality, which, for a while, camouflaged all the negative psychological baggage inside.
But the baggage started to distort X's perceptions and change X's behaviour towards other WWOOFers and me; slowly X became more negative - critical, dismissive, derisive, scornful and contemptuous. As soon as I realised that things were not going to improve and that I didn't want to sit through another meal with X at the table, I asked X to leave, even though there were only two days before the agreed departure date. X left promptly and without any fuss. This was the first time I had asked a WWOOFer to leave. I felt sad but relieved.
Should hosts generally tell WWOOF Portugal when they ask WWOOFers to leave?
As a host, I would be very thankful to know if a WWOOFer has been asked to leave by another farm, before accepting that WWOOFer onto mine. I would wish to contact the other host to find out more.
Regarding WWOOFer X above, I would recommend X to any farm, as long as they are prepared for what I discern to be an inevitable repeating pattern of behaviour, and I would advise them therefore to accept X for a maximum of 2 weeks. Then there should be no problem, and the host would get plenty of work done because X has lots of energy and works quickly and accurately.
In general I wish that hosts could more easily contact each other through WWOOF.pt