You might not like their practices, but it's not that they don't inform you about them. So nothing illegal going on.

And although some of the charges are ridiculous that can also be said of the cancellation fees and other charges for changes with other carriers. If you know about it before booking you can decide for yourself.

And even I, who has never flow with Ryan Air and has no intention to, know about the charges when you don't have a printed boarding pass of your luggage is over the weight/size limit....

Bad advice was given but the challenge will be proving that.