aria

<xf:macro id="attribution" arg-profilePost="!" arg-showTargetUser="{{ false }}"> <xf:if is="$showTargetUser AND $profilePost.user_id != $profilePost.profile_user_id"> <xf:username user="$profilePost.User" rich="true" defaultname="{$profilePost.username}" aria-hidden="true" />...

Online now <span class="message-avatar-online" tabindex="0" data-xf-init="tooltip" data-trigger="auto" data-original-title="Online now" aria-label="Online now" id="js-XFUniqueId9"> looks like these aria's aren't allowed on spans (and other non-structured semantic elements) without a role...