That's a given. What ramifications are there for this data rather than just the generic "if you're still dumb enough to recycle passwords, you're going to find

That's a given. What ramifications are there for this data rather than just the generic "if you're still dumb enough to recycle passwords, you're going to find out why people keep telling you not to". What can the data in these logs actually be used for? Because as far as credential hacks go, 100.000 users is nothing, you can trivially get password lists thousands of times bigger than that on any given day of the week.