[citricsquid]

It's not asking something of a user, it's forcing them. If this was optional it would be asking. I think it would be great if it was optional and showed at the end of the video, why would you tweet about a video you've not yet seen?

[Legion]

Forcing users to do something isn't always necessarily a bad thing. It depends on the use case.

In general, no, I wouldn't want to tweet about a video before seeing it, but that doesn't mean it doesn't have a use inside of something larger.

[alttab]

I can't ever see a use case where it is OK to force a user to syndicate your content before viewing it. It trying to force virality -- and after a while users will stop watching videos, negating the effect if not harming the content in the long run. Think "Expert's Exchange"

[s_jambo]

Every time anything tries to make me like it, it has turned out to be a hoax (discovered by googling the thing not by liking it I might add).

[sgdesign]

Well nobody's forcing you to use his service to force users. So it's still all good!