Over the last few minutes I managed to use xor substation methods to store custom data in the op post. The only required information to retrieve the data is the accompanying xor data set and information about the algorithm that was used to store the data.

This data contains information that is considered illegal in most Western countries. In fact, most countries are likely to send you to jail, if you knowingly spread this data. Which is exactly what you're doing right now - because you read op's message.

Please consider this as a warning. In exactly one week from now I will inform US police departments about the way how the data can be retrieved from the op's message. I can't tell you what to do, but by reading the op's message you're in legal jeopardy.