The latter post includes the three points familiar to those of us following Automattic acquisitions: great fit in terms of people working together; acquired service will be improved due to Automattic’s infrastracture; service will remain committed to multiple platforms, not just to WordPress. For example, PollDaddy commit to improving support for support for MySpace, Ning, Blogger, Typepad, etc.
As an example, here’s a poll on the PollDaddy shortcode. (It’s unofficial, in that it was created by me, rather than my WordPress.com or by PollDaddy.)
Update, one week later: I’m closing the poll. Of the 11 respondents, 9 liked the PollDaddy shortcode, and the other 2 don’t use polls, and so are unaffected by it.
The other metapoll of which I’m aware drew similar response: 8 in favor, zero against. To get to that poll/post, you can follow the first link in the comments. It may well be the the same people voted in both polls, so that fewer than 20 people actually responded overall.