gnasher, on 2012-October-15, 04:19, said:
If I were rewriting the rules, Law 27 would read:
"If a player makes an insufficient bid, the insufficient bid is cancelled, and may be replaced with any legal call. The information that the player intended to make an insufficient bid is unauthorised to the offender's partner, and authorised to the opponents."
I honestly disagree (after my experience from more than thirty years of directing - at all levels).
When a player makes an insufficient bid his LHO has the choice of accepting the bid as legal and continue his own auction from there, or refusing to accept the insufficient bid and have the offender replace his bid as specified in the laws.
If he accepts the IB he will have more bidding space available at the cost of no further rectifications against the offending side.
If he does not accept the IB he will have no extra bid space and may even have his space reduced further, but then the offending side will be subject to rectifications that can possibly be very damaging for them.
The final result depends (according to the laws on duplicate contract bridge) entirely on the choice made by the offender's LHO together with the further auction and play.
To argue that the possibility for offender's LHO to accept the IB creates some (undesired) randomess is just as valid as arguing that for instance the possibility for a player to make a sacrifice bid creates randomness from whether the sacrifice was fortunate or not.
We play bridge according to rules, and judging probabilities when we have legal choices (like choice of call and choice of play) is part of the game.