@TR3N47Y has changed it's twitter background and image.
The new avatar comes from:
http://the--kyza.deviantart.com/art/Revival-276924026 titled Revival
The new background comes from:
http://dani-owergoor.deviantart.com/art/Chess-305880710 titled Chess
The cite from the login also says grid, so I started thinking about where can we use a chess board, and I think it has to do with the first message and the X.
Reviewing the original messaga as a chess board 8x8 we get:
-=[O]=-=[ ]=-=[ ]=-=[x]=-=[x]=-=[ ]=-=[ ]=-=[x]=
-=[ ]=-=[x]=-=[ ]=-=[ ]=-=[x]=-=[ ]=-=[ ]=-=[ ]=
-=[x]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=
-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[x]=-=[ ]=
-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=-=[x]=-=[ ]=-=[ ]=
-=[ ]=-=[ ]=-=[ ]=-=[x]=-=[ ]=-=[ ]E-=[M]=-=[ ]=
-=[x]=-=[ ]=-=[ ]=-=[x]=-=[ ]=-=[ ]=-=[ ]=-=[x]=
-=[ ]=-=[ ]=-=[ ]=-=[x]=-=[ ]=-=[ ]=-=[ ]=-=[ ]=
-=[ ]=-E[x]=-=[ ]=-=[-]=-=[3]=-=[4]=-=[7]=-=[ ?
O = Origin Block
M = Message
E = Error in separators
? = Missing close square bracket
Anybody can help me connect the original message with a 7x9 board? I was working on rewriting the message into 7x9 and 9x7 grids, but the Xs don't align with any particularly meaningful objects on board (like leaves and/or chess pieces). I thought about aligning the M (text message) with the key or ribbons, but the key is in between the tiles and the ribbons are on the rightmost column and I cannot align it either.
EDIT: It is an old idea, but at that time the "hearts on fire" painting had not been published yet so puzzle solvers who connected the original message with a chessboard idea played with a 8x8 chessboard. To no avail, at that time. I am wondering if there is any new value in the idea after we have received new puzzle pieces.
I barely remember that @coin_artist said that the picture is enough to resolve the puzzle, there is no need for using other pieces of information from other puzzles or previous steps... I am sure that the exact comment is in one of the pages of this thread. Nevertheless, I don't discard your idea, I think that the "347" thing, in the puzzles and the user names of the "people involved" belongs to other lines of work.
Is one of the old clues, already posted a year ago I think...
Sorry not being really helpful...