I think the general consensus is that if something like this is thought to be an issue, then change the rules to ensure it is appropriately penalised. Hence the “miss” rule in snooker referenced above (which, incidentally, is not used to “punish” poor sportsmanship by the offender, but rather to correct something of an anomaly in the game whereby a player in a tricky situation could play a shot that was likely to result in a foul (by missing the target), but unlikely to leave an easy shot for the opponent - previously, the other player could ask the offender to play again from the resulting (likely easier) position, but now if a “miss” is called they can have all the balls replaced so the offender has to try again from the same position). This also applies to the penalty try in rugby. In football (soccer), the sending-off is normal considered sufficient additional punishment, but in the Suarez case it occurred right at the end of the match when a sending off has little or zero effect. Hence the discussion. As has been said, the rules could be changed to allow the referee to award an automatic goal, but this would be very hard to define fairly and consistently, and as has been said, it’s not considered a huge problem since it doesn’t occur too often. Note that not all players will deliberately commit a foul in such a situation - it’s very much a matter of personal taste.