OOmis, i know exactly what you mean. Unfortunately, I pass that sign twice a day every day and was overjoyed when they finally got it down. Only problem with their “squeaky wheel” method is that it took YEARS for someone to listen.
I don’t care much about what these kids did, but I do want to point out one thing (as I do know a little bit about marketing and billboards). All of you who are saying that they should have covered it and spoken to H&M who surely would have taken it down, blah blah blah. These signs are not reusable. It’s not like H&M would have taken it down and hung it in Times Square instead. If it was coming down anyway (as most of you think the tzadikim at H&M would’ve done) then there was no hefsid.
That being said, I believe the blame falls squarely and solely on the owner of the billboard space. If you own space in this kind of neighborhood, you should review ads before you agree to let someone hang them so you can avoid such issues.