An interesting thread and I think Nathan has done an admirable job in summing it all up. I must admit I don't follow some of the arguments. It would seem pretty simple to me.
1. It's a National event, run according to the MoMS. It is probable that the MoMS is not as detailed as it could be.
2. We ALL know what it means however.
3. We are ALL free to ride bikes that are not 100% legal, and we ALL know that if that's so, someone else can protest.
4. There is every likelihood that people will 'cheat', knowingly or otherwise.
5. The responsibility rests with the rider to ensure compliance.
The issue is whether or not a protest itself is within the 'spirit' of the event, and sadly there are no rules for that. This can give rise to situations such as those described as happening at earlier Nats (eg the Vern Grayson debacle).
Personally IF a bike is a 78 model masquerading as a 77, it's a no-brainer. IF it's more murky such as the suggestion that fork extender caps were fitted, then personally I couldn't care less and wouldn't protest. BUT, anyone who does is entirely within their rights. Of course I can imagine being a bit cheesed off if I were the one being protested against.
Mind you, I don't know the details of it all not having been there, and it's obvious some emotions are running high. So I think the thread is a good discussion about the issue, but let's just avoid TOO much individual criticism and questioning of motives. Keep it to the actual issue of elgibility etc. Ta.