Here's a contrarian opinion: VPN users are your best and worst customers simultaneously. An IPTV Reseller Panel sees VPN traffic as suspicious by default—different IP addresses every login, sometimes from different countries within minutes. But British IPTV viewers abroad rely on VPNs to get UK channels while living in Spain or Australia. What actually works is asking your panel provider how they handle VPN detection. Do they block it? Flag it? Allow it with rate limiting? Most operators don't ask until a customer complains their VPN worked yesterday but not today.
That said, British IPTV resellers with international customers need panels that log VPN usage separately from abuse attempts. Your IPTV Reseller Panel should show you connection IPs AND a "likely VPN" indicator so you can distinguish expats from hackers. I've watched resellers ban legitimate paying customers because their panel's security rules were too aggressive. Honestly, that's a conversation you never want to have. "Sorry I banned you for watching from Germany" sounds ridiculous until you're the one saying it. Understand your panel's VPN policy before your first overseas customer signs up.