Give some consideration to how much information you’re giving other users over time and as a whole.Did you post that you live in Milwaukee, tell a user that you live in an apartment with a pool, and tell another that you live next to an airport?
A few years ago, image recognition on a large scale was restricted to law enforcement and corporate security. Free services like Tineye and Google Images will search billions of indexed images on the internet for identical or similar pictures.
This isn’t necessarily traditional hash or metadata specific – cropping or resizing an image is not a foolproof way to defeat this (as I show in the screenshot below, where Tineye and Google correctly identified my profile selfie which is substantially cropped on social media).
Somebody with malicious intent may use this to their advantage when trying to correlate your dating profile to other web content.
He or she will very likely check search engine caches for old pictures or bios that are easier to identify or contain embarrassing details.
If that professional headshot is still in a cache associated with your dating profile, he or she can use Tineye to match it to your corporate bio that shares the same photograph.