I consciously keep barriers between any solid personal details and irons as obviously there’s the risk of some nutter stalking your personal details.
If the first meet is low key and public, there’s no need to overcheck.
Maybe it’s an age thing but I freak out at people wanting to get Instagram details straight away.
I’m not on Instagram but not sure how someone seeing pictures of me pouting and pretending to be cool is helpful! Or things I’ve eaten 
Plus I think it “gives people an idea of you” but whether or not it’s true is another matter?
So you have someone you might not even meet trawling through flattering snapshots of you - not sure how that encourages any intimacy or getting to know someone?
It’s just very low investment connection. A bit like all these WhatsApp “talks” and “chats” that actually go nowhere as it’s very detached and meaningless.
Phone calls - I actually enjoy them and feel that you can get more of an idea of the person?
Plus it’s more vulnerability/commitment/opening up than just scrolling through my details or me going through theirs.