WordPress Plugin Needs Improvement

Hello, I wrote a plugin for WordPress and got a standard feedback:

Make sure that the code doesn’t raise any PHP errors, notices or warnings. Enable WP_DEBUG.
Include CSS/JS file the right way using wp_enqueue
Please do not deregister or ignore the default version of jQuery being used by the theme and load a custom version.
Run the code through the plugincheck WP plugin.
Make sure no deprecated methods are being used by the plugin. The
above plugin will catch most of them so just do a quick check.

So, I bought the plugin check pro and tested my plugin. Everything is good except readme.txt and two not found methods.
My question is, why support write so common feedbacks and should I worry about the warning section in plugin check pro.

Cheers, Max.

It’s done. The plugin check pro works well.