Well the filter does get yellowed like that, but it doesn't get all shredded and handicapped like that.
I reserve my and others right to smoke whatever they want, inject anything they want, snort what ever they want, etc.
It's their own body they can do what they want.
And before you go, "B-but I don't like the smoke, it's bad for me! They are being inconsiderate for not moving!" Remember YOU are the one who doesn't like it, so how about you move? Yeah, sure they COULD move -and when I smoke, I always move away from non-smokers- but if they don't, it's not ALL on them that you inhaled the smoke.