Goodwin:
Good sense of humour, mate! Tube amps don't take 3 hours to warm up, but the chips do seem to develop whatever "magic" is in them over a period of hours. The diary entry was an update of how it sounded after 3 hours of the Quantum chips, which was, I'm sure, your making a joke.
However, just so you know (in case you don't), there are some amps that do not like to be turned off. Older Krells (that may be BYT [Before Your Time]) did not sound great if turned off for an hour or two and then back on, something well documented in the pages of TAS.