I don't have any commentary on the subject matter, but I can say it took me a full minute to parse this awful headline. First off, I've never heard, nor can I easily find, reference to "strip mine" with regard to data. After that it isn't clear which nouns and adjectives go together. For instance, I was surprised to hear that there is specialized "Social Media For Landlords" until after a few seconds I realised that wasn't what they were getting at.
I tend to give a lot of leeway to typos and grammar mistakes as they are easy to make, hard to catch, and usually have so little negative impact. But in this case the headline was put together in such a way as to make it extremely difficult to parse.
"British Startup Strip Mines Renters' Private Social Media For Landlords "