I think this is being blown way out of proportion, to be honest.
Firstly, the reward is small - a silver trim. None of the Guilds being punished really care about it. They're all good enough to gain it back, and will do so, pretty easily.
Secondly, the reasons the Guilds are being punished are so trivial, bearing in mind what's happened in the past, and the current stance ArenaNet has on a lot of aspects that break its ladder.
In the past there was a time when EvIL controlled 4 of the top 5 Guilds due to smurfs, or when ZPZG ran around with their 5 smurf Guilds, or when Negative Zero used the same Build with the same players in order to tank people on their smurf, and the same for iQ with Magic School Bus and whatever the name of their other smurf was.
Not to mention the 12 vs. 8 GvG that went unpunished, and the gate-bugging at Victory or Death that was a known bug. Exploits of these were never acted upon.
Now we get to resigning, and we can go back to season 2 of the GWFC. iGi would've been tanked out of the top 16, and not participated in the tournament, had the rank 251 Guild at the time not resigned out after iGi requested it. Again, nothing was done by ArenaNet. Throughout all this smurfing has remained destructive to the ladder, and since Champion Points were introduced possibly moreso, who knows.
Now these three Guilds have been victimised for the following reasons:
I can confirm that One Hitter Quitters [QQ] will not be recieving prizes due to the request of another Guild to resign out in the closing hour of the Ladder. Though this was not initially reported, and instead several instances wherein Guilds resigned out to this Guild were screenshotted and reported on, there was no proof to show that this Guild had asked those teams to resign out in any way. This comes after emails between Michael Gills and myself, an officer and starting player of said Guild. Though there are other things being investigated at this time, this is the only issue that has anything substantial to back it up (the admittance of all of our Guild). For the record, the Guild we asked to resign was Black Rose Gaming, who hit us for -25 with Ranger Spike on Isle of the Jade about 30 minutes before the ladder lock. In the match we had a Monk error7, though by that point it was already fair to say the match was lost.
What is most trivial and annoying about this issue to me, is not the loss of the reward, but the fact it is not consistent. Throughout my emails to Mike, I mentioned that this was not the only case of resign requests, but that several other top 10 Guilds had made similar requests at some time during the season. However, he asked me for proof, of which I have none, because I would never have thought such a question would ever be deemed ladder manipulation.
The other two Guilds have been found guilty of resigning out of matches premature to the end. One was most definately going to win the match, and the other coordinated a match with the Guild finishing rank 1 and resigned out immediately, feeding them 11 points. What suprises me on this matter, is that initially QQ was to be stripped due to the first Guild mentioned resigning out, as per a request - or so it was thought, though there was no evidence to back this up. However, QQ were going to get in trouble for this, while RenO, who ended rank 1 and got fed these points, were and are not recieving any punishment whatsoever.
Now, another thing on this matter which makes the notion of stripping rewards completely ridiculous is that it's never been done before. During a fun season, with no clear indication of what the rules state because they are, and always have been dubious at best, does not give the Guilds in question a chance.
So the motto of this;
Asking teams to resign out of a match is ladder manipulation, apparently.
Resigning out to a team is ladder manipulation, regardless of the status of the match, apparently.
Doing any of the above results in Guilds getting stripped of any rewards they may have gained.
As for proof ArenaNet have on QQ manipulating the ladder,
this is something that was posted in IRC that I find quite funny, and probably quite accurate, considering from where I'm standing, we didn't do anything wrong except for asking a Guild to resign, who did not, and that was the end of the issue.