<p><pre><code>    Compatible up to: 3.4.2
    Last Updated: 2 years ago
    Active Installs: 400+
</code></pre>
WordPress 4.5 is current. Anyone doing WordPress will just skip this if they don&#x27;t have developers that can fix the issues. Also while the base may work a lot of popular plugins (used to?) don&#x27;t utilize WP_Query or whatever else WordPress offers.<p>It&#x27;s also probably easier to add indexes to the code or rewrite the logic. Mostly it&#x27;s bad database code that sucks on MySQL and would likely suck the same way on PostgreSQL.<p>Besides that if you use an object cache like memcache or redis you can avoid a lot of database accesses and InnoDB seems to be able to deal with concurrent tables like wp_comment.<p>Would be cool to see in WordPress itself but I doubt it.