what does MD5: 123c8ae79530d9ed87e856cae39e0014 mean since my posts were deleted because of it

Your posts were deleted with a reason posted. The MD5 is just the MD5 of the image. en.wikipedia.org/wiki/MD5

It says this: This post was deleted. Reason: tos / MD5: 123c8ae79530d9ed87e856cae39e0014

"tos" is short for Terms of Service. So your image was deleted as it wasn't in line with the website's Terms of Service.

Locking down thread. If you have any further questions feel free to PM me through the website.