volant: This problem could be solved, if playing a stone was mandatory after a decline of dead stones. A game could then go like this:

137 ...  pass
138 pass D
139 -    h7 (no pass!)
140 pass pass
141 D    -
142 h9   pass
143 pass ...

This, at least, avoids repetition of the same position for every dead stone marking phase and gives a chance for both players to mark stones dead.

The referees thing would be nice too ... I volunteer