Wilf Arnold wrote:and any frivolous claims could be met by immediate loss of game
That's genius! I'd missed this:
12.6 It is forbidden to distract or annoy the opponent in any manner whatsoever.
This includes unreasonable claims, unreasonable offers of a draw or the introduction of a source of noise into the playing area.
Bearing in mind the next rule:
12.7 Infraction of any part of Articles 12.1 to 12.6 shall lead to penalties in accordance with Article 13.4.
And that:
13.4 The arbiter can apply one or more of the following penalties:
warning
increasing the remaining time of the opponent
reducing the remaining time of the offending player
declaring the game to be lost
reducing the points scored in the game by the offending party
increasing the points scored in the game by the opponent to the maximum available for that game
expulsion from the event.
This means that you can quite legally declare the game to be lost for a frivolous 10.2 claim! 10.2 only mentions the 2-minute addition of time. I think trick is worth using!