You've got to be joking - that's comparatively normal compared to some things people collect
I'm probably mostly preaching to the converted, but it does illustrate not all enthusiasts care about just writing down train numbers, or knowing everything there is to know about each type of train etc, some clearly like district (and indeed myself) are interested in the operational side - how the railways operate, equipment used for train working, etc. I'm a heritage volunteer so I've got kit like a Bardic lamp, Halo, flags (not a dispatch bat... yet) and they go to a practical use. But even if I wasn't, that's where my interest lies so that's the sort of stuff I would collect, rather than bits of locos, or books and stuff - not for anything sinister, just purely as an interest. I can't see any harm in collecting stuff, unless you're some immature person who thinks that having stuff means you can go and mess around with it - and if you were caught messing around with it, you'd end up in a bit of a mess.