<i>This problem has been solved many times before.</i><p>Not on the Web, it hasn&#x27;t. Deprecating experimental features and even just fixing bugs has been difficult to impossible for a long time; &quot;pay the contractor once to set it up, then leave it unchanged for a decade&quot; is a depressingly common approach to setting up a site, and leads to angry site owners and even larger numbers of angry users when suddenly a behavior the site shouldn&#x27;t have relied on is changed or removed.