The tidbit about Shiek's voice acting. We tend not to force sfx files on our players due to the fact that it's a personal preference thing. The same would apply to Shiek in this case. And on the topic of tethers, as it stands, no, it will not tether ledges. I would like to say, that it's been buffed from it's melee incarnation, so I advice to try playing with it more and really try to develop some uses for it.
Marth's DB will more than likely not change, unless there is a lot of solid data and reasoning supporting why it should change (See Snake)
And that question, I forgot to ask the rest of the guys about it haha.
As for the website, its working for me so I dont even know what's up with you. :/
Also, in the spirit of dropping knowledge on people.
Take the time to read when you have the chance. ♥