There is a great response from RyanAir to someone complaining about their process. I read:
An unsuspecting Ryanair passenger received a “sassy” comeback from the budget airline after criticising its check-in rules on Twitter.
The traveller in question tweeted: “Another reason not to fly Ryanair: If you don’t pay for pre-booked seats you can only check in max 24 hours before your departure, meaning you need to check in for your return while away, most likely forgetting and then costing €55 to do it at the airport.
The Irish low-cost carrier wasted no time in responding to the complaint - though instead of sympathy, its social media team took a dig at the passenger instead.
They replied to his tweet:
Adulting is hard
FR never promised customer service so I think they are justified. Other airlines are available.