Scabs?
This description of anyone who wishes to instruct without being a CPL is appalling!
Only with the introduction of JAA did it become neccessary to hold a CPL to be paid when instructing. The so called 'scabs' were always paid and continue so under the 'grandfather rights'. I have no resentment of youngsters gaining experience while instructing and warmley wish them all the best in their airline careers and I am happy to assist them with work and encouragement. Indeed it is healthy in clubs for others to be inspired to achieve the same.
However the aspiring airline pilot must look after themselves and since christmas I have had three regular instructors leave to join the airlines at just a few days notice. We need stability in flying clubs that the dedicated FI, who can be paid, based on the PPL or hold a dedicated professional Instructor licence.
Working for free or not has little to do with it.