A lot of people have been following GX4WAB as they themselves follow the Olympic torch route. I have worked them mainly on the 40 m band, and once on 2 meters.
Now we all know that the bands can get pretty noisy and congested at times, especially when you get a DX station, or a special event station operating. When conditions are really difficult, people often work a split frequency, and sometimes operators will work by numbers, this basically means they only listen for stations with "1" in the call for a while and then move onto the next numeric number. Now I have nothing against making life easy, but I've heard them operating using these tactics on more than one occasion when it really doesn't make any sense to do it like this. I was listening to the GX4WAB station yesterday on 40 m, not only was he working a split but he was also working numbers. The bands have been very flat lately and yesterday was no exception, there was nothing that even resembled a pileup, yes the bands were a little bit noisy and signals were not particularly strong, but working like this just slowed the whole process up completely, there was absolutely no need for it. I know some people got very frustrated because by this time their number came up conditions had changed. I would ask these operators to think very carefully before working by numbers and/or using split frequency, only use them under severe conditions where the bands are absolutely full. If they are experienced operators then there really shouldn't be any need to use these tactics unless absolutely necessary.
If you want to give the novice and intermediate operators the chance then give yourself 20 min in your session to only listen for these call signs, you can then keep everyone happy without making people wait for ages.