Does Professional Blogging = Non Interactive Blogging?

I'm always fascinated by the approach that different bloggers take when it comes to interacting with their readers and other blogs. I'm not going to name names but this week I've had a number of email correspondences with editors/owners of three medium to large blogs (bigger than any of mine) that have highlighted the variety of approaches that people take to this. In each case I'd emailed them to notify them of stories that related to their blogs tipping them off to a development that I thought was relevant to their blogs - I included a short statement summing up the story and a link back to where I'd posted about it. I don't normally do this with many bloggers - but all three ask for such tips on their blogs with links to contact forms or email addresses to help us to do so (I'll qulaify now that none of these blogs are on the topic of blogging - its unlikely that anyone who regularly reads this blog has anything to do with any of these). So how were my tips received? Blog number 1 - had an automatic reply that emailed me an acknowledgment of my tip, thanking me and letting me know that they read all such tips but that they receive too many emails to reply to all. I heard nothing more from them but they posted the story with a link back to my blog (and two others who had submitted the same story). Blog number 2 - emailed back a personal thank you from the editor who explained that they already had the story and were posting about it with another source. He thanked me for the tip and asked that I keep submitting them as it was tips like mine that kept his blog a cutting edge blog. Blog number 3 - emailed back asking me to remove him from my email list because he gets too many emails each day. He told me he follows my blog via RSS and doesn't want to be barraged with my emails. Now before I go on, I'll admit to some frustration with Blog number 3, I've tried to build a relationship with this blog for months by linking to them, asking how I can help them with their stories better, seeking to work with them etc. My reasons for doing so are partly selfish ones - it would be to my advantage to have a positive relationship - but they are partly genuinely wanting to connect and build them up because I think they do a great job in their niche and I'd like to support what they do. I do understand the demands that this blogger must face - their blog is popular, read by many thousands each day and must get a lot of tips' from people like myself. The demands are great upon them and it must be frustrating on some levels. However I'm also a little shocked by the response. Partly because the tone of the email was so blunt (bordering on rude) - but partly because one of the things I love about blogging is that for the most part bloggers are so willing to share information, work together and build relationships. Even the ProBlogger.net, a blog about the many ways of adding an income stream to blogs.