I don't worry too much about the seats so I use duct tape and it works like a champion.
Do you also not worry about the potential bad reputation with the venue, security, and band, in the event there's damage to the seats, support structures, and / or sticky, gooey residue left behind?
Most venues simply tolerate us. Damaging the seats, seat support structures, posts, walls, balconies, leaving sticky residue behind, etc., doesn't help others' general perception of tapers, and in some cases downright hurts. I've grimaced on more occasions than I'd care to remember as I watched tapers pulling duct tape off walls, posts, railings, etc., and taking layers of paint or drywall or plaster off with it, and/or leaving stripes of sticky residue behind. If I was a venue owner, manager, or security personnel, I wouldn't exactly appreciate that kind of end-result from tapers and would be inclined to give 'em the boot next time.
I think we
should worry about the negative impact we leave behind - like potential damage to seats - and do everything we can to reduce it...like not using duct tape. $0.02