Recently there was a fair amount of concerns about GDPR being a harbinger of doom for smaller companies and fears of user abusing GDPR requests or other companies using GDPR as a tool for taking down competitors.
Had anyone on HN had experience with people / companies / institutions abusing GDPR?
On the forums I run email is the only identifying property and in my case the trolls (2 of them I think) were unable to sign in as the users in question, so I have refused to recognise the request (and then had the threats of legal action... but what else can one do if someone cannot prove their identity?).