Why are some girls so terrible at responding on dating apps but yet still respond?

Sometimes I’ll message someone and they respond with very boring messages. After a few of them I pretty much give up on it ever going anywhere but lately I’ll message back just to see what happens. And for whatever reason they’ll keep responding.

A lot of times I’ll ask something and they won’t ask anything back and so I’ll say something like “that’s crazy” and then they’ll say something like “how was your day?”. I’ll say “good what about yours”? Then they’ll say something like, “it was pretty good”.

These conversations have gone on for up to days and it just boggles my mind. Are they actually this boring or what is going through their head? The conversations are clearly not going anywhere, why even bother responding?