i also remove them when i know they dont belong in the woods....
one time my buddy filled a garbage bag....ATV riders thought they could make new trails behind their families camp....the land owner allows ATV riding...but only with permission and on the trails that he made(mostly old logging roads)
ive taken out 100s of tacks coon hunting....those suckers are easy to spot with a light at night
talk about litter....those ribbons and tacks are major litter! i dont wanna look at that garbage in the woods...
if your using it to mark boundries or something, theres alot better methods...i rather see spraypaint on trees than ribbons everywhere....painted posts pounded in the ground etc....
one night i was predator hunting behind my house...setup and was calling and shinning with the light...imediately caught an eye and got excited...till i realized it was 4ft high....STUPID TACKS!