Yes, getting to know someone used to be a gradual process. During the time window when public posting about frankly quite private moments of life was common (Facebook ~2010s), it was weird how much you would see of a person upfront. You saw surprising overlapping acquaintances, prior vacations, party photos, hobbies etc... See photos of your teachers or profs with their spouse etc. I don't think it's normal. It was a weird phase.