The Angel List application process is horrible. Surprisingly horrible. It pastes all of your private answers to your public profile without even asking, it sends no confirmation emails when you submit, it's junk. Feels like something an intern coded up in a day and then abandoned. Would not recommend.
On a side note, I've grown be highly suspicious of any accelerator / VC that refuses to create their own form, and instead uses Angel List / F6S for the forms. If they're that lazy, I'll bet that you're dealing with the used car salesman kind of VC.
AngelList dev here. FWIW, we do have a shared set of application questions which also appear (with limited visibility) on your profile, but any accelerator-specific questions are kept private to that application. We also do send confirmation emails (though that wasn't always the case) :)
For the startup conference, we rely on AngelList for a couple of reasons. The main one is that it's unfair to startups to have each incubator use their own form. Founders have better things to do than fill out yet another form. On AngelList at least, you fill out their questions once, and you can re-use your company profile for many opportunities.
The second reason is that the questions they ask are the right ones. We don't want to read a long executive summary, we need a quick intro video of the founders and/or the product, a paragraph on what you are trying to build, and any details on traction if you have some. Not a 4-page executive summary with 5-year bogus financial forecast (like older angel platforms used to ask).
