While I'm not sure if you would fully commit to the argument, despite how scummy, stupid, creepy, or even dishonorable these stalker reddit users seem -- especially if they are calling and legitimately stalking -- that's not a good argument against implementing infrastructure to let people be anonymous online.

The admins do nothing, presumably because their definition of harassment is unattainably pointlessly specific.

There's probably not much they can do if they're using TOR or some I2P or proxies unless they block all users who do the same. If /u/unwordableweirdness has any further information on the stalker/s though they should definitely dump it or put it to use, others could probably help. Speculating, but the best bet might be if admins could just compare log in times for accounts used for harassing /u/unwordableweirdness, see if they could get a non-TOR IP or something. A reddit bot could help track the harassing accounts but an admin would have to get the IP, etc.. Or if emails were exchanged the person could maybe be traced. Reddit might turn over an IP for a subpoena at least. I'm not sure, unwordable has probably already tried doing something.