I've been flying WestJet, Air Canada and other defunct Canadian airlines  domestically for a long time. 15 years ago you could fly for $250 from Toronto to Western Canada (Calgary, Vancouver). Decent leg room, two check in pieces of luggage included, no seat fee. Travelers had small backpacks, purses, laptops as carry on. Very comfortable flight.
After killing the competition WJ and AC started to strip down service: one checkin piece of luggage, then no checkin luggage. While jacking up their prices. Travelers packing up everything but the kitchen sink in the carry on was the logical expectation. Then seat fees, crammed seats. And you are happy now if you can get a $600 ticket to Calgary (before the add-ons).

So we are complaining because the service level dropped considerably while the prices more than doubled.