What is the idea?

/www/wwwroot/cloud.icelin.top/bb-config.php
Please make sure that file exists and is writable.

/www/wwwroot/cloud.icelin.top/bb-data/cache
Please make sure that directory exists and is writable.

/www/wwwroot/cloud.icelin.top/bb-data/uploads
Please make sure that directory exists and is writable.

Is this normal?

Why would this be beneficial

Benefits