I was browsing through stackoverflow meta, and I found a new way to hide text.
Hint: After you find the ink, there's another tiny layer. Answer should be obvious.
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The answer is
I found this by
copying and pasting the text of the question into a text file, whereupon some mysterious dashes appeared in the first line,
I-- was----- browsing---- through- stackoverflow---- meta----, and I found a new way to hide text.
These new characters form
a pattern of 254144. They're not Morse code, because
----isn't a valid Morse symbol; translating numbers to letters, BEDADD doesn't make too much sense; the OP says it's meant to be a hex code, so using this table to convert each pair to a character, it seems to come out as %AD.
Seems to be a reference to this Meta.SO post (spoilers, obviously), which I found by searching for [the answer to this puzzle] on Meta.SO.