And while this all is true and I pay my respect to canon, I would like to bend reality to mine, and many others - headcanon.
<s>I even watched Night Mind explaining MH just today to have a fresh memories of the series.</s>
First of all, Proxy definition, so we all know what we're debating about: (From Slender Man wikia)
"Proxy (plural: Proxies) is the term given to those who serve The Slender Man. The theory behind the name is that Proxies are entities or people who are under the influence or control of the Slender Man. (...) It is suspected that Proxies do the actual, physic