[__abc]

You can put all the disclaimers you want before a use and they will "venture forth into the unknown". However, they will ignore (if they even read/understood it) your warning and then bury you in support tickets, complain loudly to their friends, and leave you with a mess to deal with and no real clean/easy way out.

[pjscott]

And lest anybody say it won't be that bad, yes it will be that bad. There are some remarkably vitriolic people on the internet.

[nholland]

I second this... users rarely read anything & remember even less. If you let them in, then they expect it to work. Its unfortunate for Opera, but we're doing the same for our beta launch.

[jarek]

> then bury you in support tickets

After all, Myspace has a commonly-used bug reporting functionality.

> complain loudly to their friends

Because they won't complain about being locked out?