Happy to promote your platform to clients and build on your system but since this limits my options and I am helping you grow your company, it would be great to offer a white label affiliate program with my branding for my clients. Perhaps do a free designer account + 30% discount on the monthly / yearly fees for the life time of the clients' accounts. It's pennies for you but imagine how viral this can become. It has to be an offer that is worth moving clients from other hosting options or considering to bother with yours. I'd love it.