Speaking as one of the moderators on the Navitron Forum perhaps I should point out some of the rules:
(9a) Website links are only allowed in signatures if they are agreed by a Moderator or Admin. If you wish to place a link in your signature, you will need to contact one of the moderators for prior approval. If the website linked is DIY or non-commercial in its nature, then this will be perfectly acceptable. If the link is to a commercial website, it will be acceptable only if the products/services sold are based on Navitron equipment, or if the product/services are non-competing with Navitron's and agreed by Navitron Admin. Installers who offer installation of Navitron equipment will be allowed to post their links if they exclusively offer installation of Navitron equipment. Installers offering Navitron-sourced equipment alongside other non-Navitron-sourced equipment or those who have only purchased from Navitron once or twice in the past will not be allowed to post their website links
(9b) Member Usernames which are directly related to company names or websites or names which make up phrases advertising a service are not allowed. e.g. you may not choose a Username such as 'cheapsolarinstallations' or 'Cheap Solar Ltd' or 'Wessex Solar Installations'. If you already have a Username of this nature, please take steps to change it, or if you are unable to do this, contact a member of our moderator team who will be able to help you make these changes.
(9c) For most members no change will be necessary, although some may need to register their existing signature link with Navitron. Failure to register your signature link will result in its removal. Any member reinstating a link which has been removed by Admin will be subject to a ban. These measures have been taken to prevent the small minority who abuse the system, and Navitron regrets the inconvenience caused to the majority of forum members.