Here are two bookmarklets which might accomplish what you are requesting:

    javascript:window.location=window.location+'&title='+document.title

    javascript:window.location=window.location+'#'+document.title

I don't mind the simple IDs for HN URLs.

The thing that I have the most trouble with is when bookmarking comments sections by dragging the "XX comments" link to my bookmarks bar, the title then saves as "XX comments" rather than the title of the article. This might be a browser / HTML issue though, I tried adding a "title" tag but that didn't fix it.

Updated bookmarklet below:

    javascript:window.location=window.location+'&title='+document.title.replace(/[^A-Za-z0-9]/g, "_");