comments_template( $file, $separate_comments );
wp_list_comments( $args );
theme check plugin says you have to use them but I don’t want to use it would be a problem?
Thanks for purchase from envato market, You can contact to author with screenshots
I am making my own theme
Yes, there will be a problem - your theme will not be approved. There should not be errors or warnings in theme check.
And make sure, you are using this version of theme check - https://github.com/envato/envato-theme-check
Is this a problem?
WARNING: Found echo $ in the file options.php . Possible data validation issues found. All dynamic data must be correctly escaped for the context where it is rendered.
Line 65: <?php echo $options_machine->Inputs /* Settings */ ?
Yes, you should fix all errors and all warnings.