Yea, that did not come out right. In trying not to sound too harsh I ended up sounding like a dick of a different kind. So I 'll just say it; people who walk around staring at their phone strike me as self-absorbed douches. Mind, I’m not saying everyone who uses a mobile device, I’m specifically referring to those that are oblivious to the world around them and do stupid things like walk without looking and are too busy texting to realize the cashier is waiting for payment. Douchebag= person of lower . . . uh, quality 
For me (as a guy) VPL is really not an issue. I can see from an aesthetic standpoint that you might want the clean lines, but if you’re not in a fashion photoshoot, I just can’t see caring.
If a woman is thinking about it from a modesty standpoint: don’t bother. If you’re wearing something tight enough for VPL to possibly be an issue, then I’m already thinking about your panties (or potential lack thereof) either way. (Sorry, I’m just wired that way. I won’t stare at your chest, if that’s any consolation.)
If modesty is the concern, then wear something less tight and wear whatever panties you want.
There has been a lot of ongoing research in this field.