And no-one would dispute that... however, what causes threads like this to occur is lack of communication. You may be our masters but you are also our servants, for without members, this place would wither, and showing a small amount of acknowledgement for people's feelings is just common courtesy.
In the case of the pizza thread and similar threads, if it appears problematic, you don't have to spend ages tinkering with a thread, deleting and merging posts, nannying it into shape. All it takes is a handful of words, perhaps a dozen or so, why the thread is about to be locked or closed and that would be that.
Instead, summarily despatching it without warning comes across as wilful, high-handed and authoritarian and inevitably leaves people asking 'why'? And then, after a fuss, when a defensive and slightly ill-tempered explanation is proffered after the fact, it becomes obvious that doing it beforehand would have avoided the problem in the first place. It's just a matter of tone and style.
Finally, don't mistake criticism as disloyalty. Many of us here, not just the mods, have an interest and a commitment in maintaining the place as it is, suggesting improvements where possible; it's not an exclusive quality of those who pull the levers.