[PlunderBunny]

Absolutely, and they admit this themselves. From their FAQ:

"the rate of degradation is very, very slow – untreated plastics of the type used in Future Posts degrade in the environment by 1.3um to 22um (0.0013mm/year to 0.022 mm/year for HDPE and LDPE respectively). For the mix of plastics typically in a Future Post, that means the post will degrade at a rate of around 10% of thickness of a hair every year"

[garbagewoman]

Think about what you’re writing and compare that to your experience with any non-uv stabilised plastic that has spent its life in the sun. For someone who implores for people to “think about it” you sure seem extremely easy to convince with a bit of marketing fluff

[PlunderBunny]

I'm not convinced - I'm still thinking about it even now! The plastics, treatments, geometry etc make the posts quite different from the kind of plastics we find falling apart on the roadside etc.