Almost two years ago, I asked[/url] for a way to disable HTML validation globally. I just don't want it, period. Since then, two major versions were released, many new inspections were added, and I still can't turn them all off.
I'm sorry, but I doubt IDEA will ever be able to handle all my hideous HTML and JSP pages as the twisted minds that design them expect. So please, give them a break, and just leave them alone. Don't bother analyzing them. Please.