User blog comment:Ohmyn0/Making your wiki HTML5 compliant/@comment-5473581-20120707015321

Cool. In addition to the "Obsolete Elements" list, i think the Changed Elements list is probably important to look at as well. Strike is specifically mentioned as being obsolete, but s is on the changed list. Will s function the same, or does strikeout need to be done in css at all times?

I know how to get a database dump from Special:Statistics and search for those elements, but that might be too much work for a lot of users (and admins!).

I think the simplest solution is to replace all relevant tags with templates based on the function of the tag. Replacing strikethis with, where s is a template for a span tag with a style to strike the text. This is possibly something that could be done by a bot en masse - although it would probably have to be an opt-in service.

Perhaps Wikia can offer some kind of automated tool to generate a report of pages containing deprecated tags? Special:OldHTML perhaps?