Surely it just searches the log files and puts the already available data into a more interpretable format, given you already knew his ID it is the same as Ctrl+F, putting in the code and hitting next to see all his names.
Hardly an amazing super weapon for the axis of evil...
I believe it's a bit more powerful than logs. The thing I am providing contains more than 45,000 names and is increasing each days.
To be honest, I don't think you can find as many names with a CTRL + F in a log file. The advantage is you can get EVERY names the guy you're looking for used without having to bother opening log files, in addition of that, it combines a lot of servers, not only one.
It's a lot faster and much more useful than 'logs'
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Awwwwwwh, don't spoil his glory!
I hope you understand it was not meant to be made for 'glory'. It was basically created for server owners to defend themself against trolls and other types of undesirable people.
By using this tool, you can get aliases of a player and then knowing who you're dealing with, very useful to adapt punishments.