Ah EnglishBob, another Opera user, excellent taste. As for hanging, being a Pastafarian, I would go for flogging with al dente.  My take is that the power of a configurable interface is that it allows the user to customize his/her experience starting from a consistent baseline. The value of standards is that you know that pressing F1 will bring up help in virtually any application. Having the ability to map that to Ctrl-H let's you choose to stray if that fits your needs.

Individual websites, IMO are no different than individual applications in that respect. It's great to be able to customise your browser but there should be a set baseline so that one does not have to guess/remember/try to figure out what the result of clicking a link on any given site will be. Given the democratic and flexible nature of the web, people can and will do all sorts of things that vary from (IMO) sensible standards but that doesn't mean it's a good thing - a painful admission from someone who has written his share of  ummh, unique interfaces for applications :-)

I agree that it's not a "problem" per se*,* just nano irritant compared to the many real problems so I won't be bringing out the noodle of 9 tails, lest they enjoy it and start demanding sauce and bread sticks.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken