For VPN purposes then i would definitely be making use first of those in built VPN with some browsers like OPERA. It does work on just like with those known VPN.
Im much aware about NordVPN too but of course i wont really be that willing on spending up on something just because im interested to play into their platform.
If you care about your privacy, I'd suggest you avoid them. Most of the time they collect your data and the speed is just as horrible as other 'free' VPNs on the internet. Not to mention they can inject or suggest some ads even if you don't want to see any. My experience with those VPNs is terrible.
perhaps the IP must have been known for so many bad activities or what? -ip-
But there are some that are military grade or more, I do not believe that it can be decrypted easily that it is a VPN unless the IP is generally from unaccepted regions.
Not necessarily bad activities afaik, especially if you use shared IP. Other users probably use the same IP to access the website from different locations, or they accessed the website at the same time. That being said, one of my VPN servers does get blocked by overseas gaming platforms, probably because too many users tried to register from the same IP address. Btw, military-grade† is just a marketing gimmick. Most of the time it means the cheapest and decent option on the market, or AES-256. If they use that term as their main marketing material, I'd suggest you look for other services instead. CMIIW.
