[Xdes]

Not really interested in signing in with Twitter.

[blowski]

Also not happy that they Tweet from your account without making it explicitly obvious that they're going to do it.

[dspillett]

I always assume that if something wants me to sign-in via something like facebook then it is going to at least try to use me to push the word to my contacts.

The choices at that point are:

1. Back away and live without what-ever they are offering.

2. Create a temporary account and sign in via that.

If a product impresses me I'll let my friends know myself - the product is not in charge of what I do/don't say about it.

[grosbisou]

To be fair with them you can see this line below the registration form.

"Therefore, by applying you will automatically follow @startuppack and tweet the above pre-formatted tweet."

[blowski]

True - I went back and checked, but I would prefer if they didn't do it at all. When a brand tweets on my behalf in this way, it always makes me feel less favourable towards that brand.