I think this also depends on what is your main customer base. I do know many who detest companies like RYR that they rather stay at home than fly with them. This is no longer a small minority group.
Customers attracted to Norway and Scandi-land are also of a stronger financial resource than many of RYR's main customer base, no taunt intended, but the social structure and financial strength of Norway vs example UK, can't even be compared. Norway is one of the richest countries in the world, with a very advanced social structure.
UK with regards to average population can't compare in financial strength of their customer base, and probably will find more customers not able to afford better than RYR. But also in UK, as soon as you go to the mid-level income and upwards, they are equally detested by RYR.
If you check EZY's new ideas from 2013, you can clearly see they are moving away from this LoCost model. It is better to fill the AC 120 PAX that are willing to spend their money, rather than 180 PAX that all bring their own lunch package from home, not spending a penny onboard, because they have already exceeded their budget on booking their tickets and £50 per extra luggage.
Considering this example the tickets for the 120 PAX will have cost the same as RYR's 180 pax total. RYR have cheaper tickets and cheaper clients, with less spending power.
Of course you still have many countries where they have no other option, where they still can not afford more, so they have to bring their own lunch and drinks.
Value the customers, make the customers feel like they are valued, and they will be coming back for more. Get robbed 40 Euros for each kilo overweight, or 200 Euro for not printing your boarding card in advance, and the publicity over time will kill your business.