Simone

You can translate core and plugin editing their .po/.mo, here it is explained how

http://docs.wpgeodirectory.com/translate-core/

To remove share boxes, add this in your style.css inside your child theme

div.geodir-company_info.geodir-details-sidebar-sharethis {
display:none;
}

and if you want to remove Facebook twitter and g+ button, add this

div.geodir-company_info.geodir-details-sidebar-social-sharing {
display:none;
}

Hello David, I tried to leave a test review without logging in, and it went through, it says awaiting for moderation. Try to test it by yourself deleting your cache first.

Hello, you can use the shortcode [gd_popular_post_view] (the default = gd_place), you can find the list of the available shortcodes (and options) here
http://docs.wpgeodirectory.com/core-shortcodes/

Hello,
preview is part of the core, so it cannot be disabled natively.

Hello Adrian, what you can do is to use a third part plugin for registration/signup (such as profile builder https://wordpress.org/plugins/profile-builder/ )
GD uses the WordPress login/registration system, not custom.
What you can do eventually is to redirect the login page, as said in the documentation
http://docs.wpgeodirectory.com/redirecting-the-login-page/

Hello, not sure if I got you but, what I have on my test site is like this:

I have set /blog/%postname%/ in the permalink section (WordPress)
and set in the Reading settings (WordpresS) as blog page, a page named Blog, so blog page and blog posts are in domain.com/blog/title-of-the-post

You can find that “Near me” icon in the Advanced Search Filter addon, or you can use the widget GD > Near Me Button (it wilt embedded in the search field thou.

About the Visual editor in the comment field, this is how WordPress works, it is not a GD choice.
however you can try to add some code in the functions.php or maybe there is a widget that add that visual editor, but honestly, I have never tried it