You are trying to click a link in a comment but the comment keep collapsing, also, pressing for a second should select the comment text to copy or other actions instead of hiding the upvotes section.
I don't think the feature should be removed. Perhaps it can be reworked or improved for selecting text, but I personally appreciate the click to collapse. Very convenient to skip forward to the next item.
I agree it's great but I would love if it were moved to a separate button along with a button at the top of a post to collapse all comments so you can skim through top-level comments more easily.
One issue I keep encountering with this click to hide implementation is that users post a thumbnail sized image and when I try to click on it to see full size, wind up just hiding the comment.
RiF had the option of collapse all childs, but I think it was a setting that applied everywhere, not a functionality you could use in a thread by thread basis.
I also like collapsing comments, but I don't like that clicking almost anywhere on the comment it collapsed it. Sometimes even trying to upvote a comment it keep collapsing it.
I also prefer Slide's method of collapsing comments; it only collapses the child comments, not the one you pressed on. (although it also has an option to collapse it too)
The "show content for collapsed comments" option does what I think you want. It'll cause tapping on a comment to hide it's children but otherwise leave that comment visible.