I guess it could. I have typically just used the replacement stickers option (there's a widget for it on one of the pages), and used the free text field when needed. It looks like I requested 3 stickers in all of 2021. I'm not sure if that's a lot by their standards, but I can assure you it's certainly not a lot by my personal LEGO buying standards lol.
I have only requested used Bricks and Pieces to request 2 actual pieces over the past 10 years. One was a broken element, and the second was a misprint Beskar Mando helmet. This is a known issue with the printing on this helmet. I request a single replacement, which was actually a worse print, and then took the opportunity to e-mail LEGO photos of the helmets to make them aware of the printing issue. I ended up speaking with someone, who then sent me 4 helmets and said one of them should be fine. I was already wary of this, because I certainly don't want to abuse the system, and definitely didn't want to jeopardize my standing with BAP, but he assured me it would be fine. I think these helmets, which I did not formally request, were probably the reason for the ban once my account was reviewed. I wish I could send back these misprints instead.
This most recent sticker request was definitely what flagged me me, because it was the only time I have ever requested the same sticker twice. The replacement sticker that I got in (for 75318) had a really bad corner bend, and I requested another. I spoke to someone with support who assured me it was completely fine and she placed the order for a replacement sticker, which was then cancelled and I received the e-mail that I can not use Bricks and Pieces anymore. I spoke with support today and was informed I can not use BAP anymore, but can order pieces - but can't order stickers. Seems odd.
I have such bad luck with stickers. Just venting a bit - first negative LEGO experience I've had.
Yeah, I've always been extra wary of using it unless absolutely necessary. Never for valuable parts or anything, except for the one misprint issue I detailed above. It's such a great service for stickers primarily - I definitely wouldn't have ever wanted to abuse it.