the main caveat for go wild is you can only get confirmed bookings the day before flight departure for domestic travel and starting 10 days before flight departure for international travel. most people i know who got this pass are drs and nurses who work shifts, so they have highly flexible schedule to take advantage of this pass. even then, i heard that it is not always you can find something, so not something i would recommend for your friend

not my experience, but i also heard a lot about the issues with these ulcc, from lack of live support to overzealous gate agents enforcing the carry on limits to flight cancellations. personally, i would rather not take that risk since the price isnt that much lower. there is even less reason to for business travels

i believe this is a related to another question you asked in the aa forum. as mentioned, aa eshopping portal can be a quick way for her to earn status even without a cc. for example, signing up for motley fool epic gives 8.3k lp, blue apron gives 4.5k lp, at&t gives 6.2k lp, verizon 5.2k lp. hotels car rental can also add a tidy sum.