This is so bad that it's hard to think that this wasn't intentional:

TLDR; not only did libbitcoin explorer use an insecure Random Number Generator (one whose state can be predicted by sampling a few hundred outputs), but it was seeded with only 32 bits of entropy from system time.

For reference you need at least 128 bits of entropy for a "secure" wallet.

32 bits of entropy on the other hand is only around 4 billion different possible seed phrases. It'd take your average computer just about a day or two to go through all the possible phrases generated by this library.

I thought people who were rolling dice or flipping coins 256 times was overkill but now I'm not so sure if this is the state of some of the seed phrase generators out there