The only eight letters used are between H and O and the only way to divide 415 is by 5 which is usually a good indication of Ascii art. Remember that there are usually 3 passcodes per posts so we need to find different ways of identifying which letters are spaces and which are not.

All codes use the same 83×5 grid.

jmjhinihlomhooohooohnoohooohhoohnolhonjhinihooohkoohloohooohmoohooohnoohmkmhomnhkoj
ojohohohnhohohkhhohhohlhinhhohhhklkhohlhohohlklhohihohlhklhhohhhjmhhklhhninhohohmho
ojohoinhnhoholkhhohhnklhiohhklhhkoihonhhojohlklhojmhlklhkohhmohhjohhjohhnmnhmjmhmkl
klohklohohohohkhhohhnhmhinhhkhlhklkhohlhohohlklhohmhlhohklhhmhjhjmhhjlihninhohohklm
jinhijmhlklholohooohoknhooohlokhklkhokohjmjhmkmhknohoklhooohokihooohkmhhmkmhoinhkkn

First codes:

I’m including a snapshot of the result for better reference

okjnisecalvinseeisidb

okj97calvin786db

Second code:

moonieicreatesesefoxz

moo98create774xz

Third code

qqneinistrongnifithnq

qqn89strong953nq