version2.0,i find htacess file in every upload survey folder.
<IfModule mod_php4.c>
php_value engine off
</IfModule>
<IfModule mod_php5.c>
php_value engine off
</IfModule>
this file has no any function but increase server load.
is that a bug?

It deactivates the PHP engine for the upload folders as an additional security measure.
Why would it increase server load?

hataccess is not a good solution to avoid php,
as to apache will handle htacess in every folder, it will cost much server capability, actually waste.
and in most server, we set option none for apache. it means htaccess has no any function.