I would rather to keep AirVPN as a underdog because they been consistent with their excellent services. The issues is that when people start to "advertise", the VPN provider will become too popular and will led to subpar quality of services or the resources stretched too thin. This been a case for many VPN providers (NordVPN, ExpressVPN, PIA, etc), truly you can see the effect on NordVPN after their YouTube ad-explosion few years ago. If people naturally come to VPN provider, then it will be easier for the providers to expands their services (or not if VPN providers get greedy). I would rather people to come to AirVPN naturally (like word-of-mouth) than dealing with huge volume of new users daily. This is the reason why I don't advertise AirVPN.