WordPress Multisite is a feature that allows developers to create a network of WordPress sites within a single WordPress installation. While pair Networks does not ban the use on some hosting plans, we do not provide direct support, nor encourage its use for the following reasons:
Reason 1: WordPress Multisite uses a single database for all the sites, which can lead to poor performance and plugin/theme compatibility conflicts.
Reason 2: If one site is exploited, all sites will be exploited. A single security vulnerability places all users at risk.
Reason 3: There is no easy way to move a single site from a WordPress Multisite setup to its own installation.
Reason 4: Each site must be managed through the WordPress admin dashboard. Users cannot install plugins or themes.
Reason 5: A plugin or theme used by one site may affect another site, even if the plugin or theme is not active.