Sharing images from Flickr now removes all of your flickr tags before they appear on tumblr. Keep an eye out if you share from Flickr like i do.
Really like your images. The Flickr iOS app still attaches the tags when you post to tumblr. Hopefully they will not remove that.
I actually got this link via marco.org, the guy behind Instapaper. Im half way down the page and it has me chuckling away, well worth the read.