I have had no drops from the game, so... sorry... not my experience. This MMO, for me, has been the most stable I have played in a long time on my comp. But I acknowledge that there are a zillion different comp configurations and other subtlties that can pop a game breaker for a particular player. Only way to avoid that would be to never patch or change anything.
There was enough testers posting issues with fps and lag/latency they knew it was more than a few odd configurations. They went ahead anyways with 1.4 with shadows to met a deadline as opposed to making sure it was an actual improvement.