[wesleychen]

The thing that really surprised me was that even when he implemented IP blocking, the user used a VPN to continue abusing the site. That's a step beyond "casual" trolling that someone might do to test a site's security (not that this is justifiable behavior) and enters the territory of targeted harassment.

[Kiro]

I don't find it surprising. This happens in every project I run. It's almost a guarantee that when you ban someone they will come back with a new account and when you ban their IP they start using VPNs. It's such a common occurrence and they get more aggressive for every step where they consider it a victory when you manually take action against them. I often need to resort to banning whole IP ranges.