Loren Wiseman has mentioned this on a number of occasions, that the concept of Strephon in the MT time line was inspired by the False Dimtri's of Russia. And I wish they'd stuck with that idea too.
I wish they'd stuck with the idea too. GDW's well meant attempt at fan service which morphed the Real Strephon into the real Strephon has caused far too many problems.
Sundry comments:
IRIS - The meta-game story is well known. It began as a variant, was slipped into canon with the variant's author became a line editor, and was neatly excised from canon when another line editor took over.
From a meta-game standpoint I never much cared for IRIS. It smacked of skills inflation that all RPGs eventually suffer from and produced player-characters which, if they weren't munchkins, definitely skirted the edge of munchkindom. From an in-game standpoint, I cared for IRIS even less as it rested on the lazy trope of "secret masters" and the "hidden hand". To my thinking, if you wanted to play 007 and Illuminati there were other games for that.
Strephon's IRIS diary entry - The torturous application of semantics to that entry in order to "prove" that IRIS really existed would be funny if it weren't also so sad. The entry in question was specifically written to remove IRIS from canon, so interpreting it otherwise means you're choosing to deliberately ignore the oft-stated intent of the author.
What IRIS is or was in your personal TU is entirely up to you. What IRIS is or was in the OTU has been stated in no uncertain terms. Live with it.
Dulinor's Plot - I wrote about this when I began this thread and I still believe it is potentially fascinating story GT unaccountably failed to explore. Let me quote something I wrote earlier to explain why the counter-plot to Dulinor's plot is so interesting:
Thinks about it for a moment. Dulinor had lined up support across his entire Domain for his coup. He'd suborned nobles, governments, fleets, armies, bureaucrats, you name it. The plan was that he'd kill Strephon, claim the Throne, and his Domain would rise in immediate support. Immediate support, mind you. No one was going to wait for the news from the Capital to begin their part in the coup, they were supposed take action automatically on a given date. So there were thousands of co-conspirators waiting in Ilelish for the planned date but, in GT's ATU, that date came and went without a single one of those co-conspirators doing what they were supposed to do.
That means, as Dulinor was building his coup, someone else was working right behind him dismantling it. Someone so carefully thwarted Dulinor's plot that there were almost no loose strings left behind, none of the co-conspirators were able to take the actions they had agreed upon. The only piece of the plot that still occurred was a planet-wide media buy on Dlan, the counter-plot had rolled up everything else across an entire Domain and in the Imperium before Dulinor was blown up.
The counter-plot thwarted Dulinor's plot so successfully that there were nearly no loose strings left behind, but what if a few more loose strings were left behind?
Don correctly pointed out earlier that no one wants a setting-wide meta-plot disaster like the Rebellion. I'd like to suggest that the Imperium can be "locally interesting" without becoming a train wreck and that loose threads which the counter-plot failed to account for can provide many "locally interesting" events.
Imagine a border subsector in Ilelish whose fleet commanders aren't identified and subsequently "neutralized" by the counter-plot. D-day arrives and their squadrons jump away on their long planned missions under the banner of Dulinor the First. Might events get fairly interesting in that region for a year or so? Might those events provide for better TNS entries and adventure seeds than a list of Iolanthe's fuel stops and what flavor ice cream Avery had at his birthday party?
A sector's worth, or even Imperium's worth, of loose ends from Dulinor's failed plot could have provided GT's alternate time line with TNS items and adventure seeds for years to come.