So, assuming that only half of the alphabet is used then we would need to pick letters manually...
abcdefghijklm
nopqrstuvwxyz
1234567890123The numerical values of the first message are:
-12+5>+5+8+6+7>-7+8
If one assumes that -- = subtract twice, and that 13 = shift 13(no change) then...
j/w e/r _ e/r h/u f/s g/t _ e/r h/u
we rust eh
Is Proxxy Canadian?
But then it makes no sense for later messages...
The numerical values for the puzzle are
71 2a 5b c4
a is not 2 or 1
b is not 6 or 4
c is not 3 or 7
As near as I can tell, the encryption originates from pProxxy, so presumably cannot contain any information that they do not already possess. So presumably it cannot be a solution to the puzzle because if it were then Proxxy would be able to solve it without us...
pay debnts: want to know what they're missing
Dermonster: yes
pay debnts: i can tell you as long as you don't even hint at it
Dermonster: I will not
Dermonster: I will just post an entire page of blackout
24 placespay debnts: ████████████████████████
Dermonster: pffffft
26pay debnts: ██████████████████████████
Dermonster: good lord
19pay debnts: ███████████████████
43pay debnts: ███████████████████████████████████████████
73pay debnts: █████████████████████████████████████████████████████████████████████████
50pay debnts: ██████████████████████████████████████████████████
25pay debnts: █████████████████████████
68pay debnts: ████████████████████████████████████████████████████████████████████
15pay debnts: ███████████████
Dermonster: ah shit it rained through the window onto my bed
pay debnts: lol