I had an acquaintance in college who did this. She just had a round belly. She loved showing off her dresses that she'd wear for performances (vocal major). I suppose it's different because she bought them for herself and didn't realize it was maternity until she tried it on and saw she wasn't dealing with the same issues she normally would with clothes. She mostly just bought it for dresses, not casual everyday stuff.
I've personally never done it because that's not the cut that would work for my shape but I have heard of some women choosing to either buy a few maternity outfits for the comfort or continue wearing after they'd given birth. I don't think any woman who truly understood how poorly womens clothes are cut for most bodies would begrudge it and sometimes it's just the best option.
edit for frogetting some important words lol
3 years