When activated, it grants legitimate permission to publish constructive critics in 'Trollish'.

Very few can achieve the required social-intelligence level to securely activate this magically rudimentary piece of craft.

Its enchantment includes a back-door, that allows dispossession of it from its owner -it has yet to be revealed of how that can be done- and there is also a self-destruction mechanism that triggers, when its user irreversibly "trollified" him-/herself... so t&c applies lol