[klapinat0r]

> if you didn't fetch the file at the right time, you will lose some history after rotation

Very true, and that's a trade-off, not unlike what Twitter does today. In my pseudo-code I didn't make the -n part of the url (it easily could be, but that'd add changes to the client). So I agree with your criticism, but a "since" lookup would be a fairly easy extension of the client (i.e. part of query, so unsupported frontends still work), as the data file already contains date.

> Before you know it, you have reinvented the WWW

Yes. :)