The one thing that stuck out the most in my mind at the end of BWE #3 was servers. In BWE #2 they had a lot of servers and a lot of the people playing the game liked this. Not too many people running around in the PvE area made it feel relaxing to go around doing things.
In the last BWE they reduced the servers. Their reasons they made public were to paraphrase: we have the technology so we will use it in BWE #2, but my bad we did it too well. So the down size in BWE #3. To me; a person who stayed in the PvE areas during the last beta weekend was at times, something I did not like. There were times, especially in the Asura and Sylvari areas that I found myself dumped over into an overflow server. Then time to time I would get a message stating that I could now go to REAL server. Some times this message happened at a really inappropriate time. i.e. in the middle of a fight.
Now having been in many betas. I do understand the mentality I feel they really had. Being: we really need to stress out the servers and see how they hold up. Totally logical and wise. But now we are coming down to the last weeks until the game goes live.
Having heard from guildmates that there was a lot of lag issues in the WvW. Also they felt to a degree there were too many people running around in the PvP areas. I feel that there is a need for more servers then the amount that was available in the last BWE.
In the second there were forty eight servers for both the US and EU. In the last weekend event there were eighteen for the US and twenty-four for the EU. Now I am not saying go back to 48/48. I just feel there should be more servers then were in the last BWE.
Could one reason for the stress test later today be they are looking into to server loads once again? I can only speculate.