>>112872514chan is written in PHP, which uses either signed 32-bit ints or signed 64-bit ints, depending on the platform. Chances are the server is already using 64-bit integers, which means that in Jan 2038 nothing interesting will happen (at least as far as PHP goes). Even if 4chan used 32-bit integers, there probably wouldn't be that much of an issue. Dates would roll over, but since the server doesn't really do anything with the dates other than recording them, that wouldn't really break anything. Of course, since 4chan does not provide the website's source code, there is no way for us to know for sure.
