Which VPN provider doesn’t have their addresses flagged? I know a few offer “residential” IP addresses (for quite the premium), but as I understand it, these are a bit of a grey area and are also usually shared, so usually just a matter of time until they’re banned or flagged as proxy/shared/anonymiser.
The financial incentives for VPNs as they get bigger cause them to both put as many subscribers on the same IP as possible and to share IPs over the entire subscriber base. It's possible for a VPN to sacrifice profit to avoid being detected as easily.
One reason not to choose Njalla is that they changed their legal entity without (to my knowledge) telling anyone. THat's a bit of a red flag for me.
They were incorporated as 1337 Services LLC in Nevis (the Caribbean island) and recently it suddenly changed to Njalla SRL in Costa Rica. Looks like some guy wrote a post about it where he contacted them, they said "internal restructuring, nothing to worry about" and refused to elaborate further.
I know Peter Sunde (of TPB fame) founded it but I don't know if it has changed hands now.
I'm happy Airvpn is rarely mentioned in mainstream vpn lists and don't typically mention them myself (sorry airvpn folks, but here's my apology) because I suspect its relative obscurity is in great part the reason it works so well. Not only reputation - it's technologically good too, supports all the payment methods, good prices, lots of exit points, no nonsense. I've been using them continuously for several years.