[Edit] ok I was blind, there is already an option for that in the settings called "show action bar by default for comments" not sure, if this came with .33 or not but I'm happy now :D
But I agree with Celsiuss - long and short press actions should be swapped!
Looks good!
One suggestion:
Can you make an option to hide the controls for comments (up/downvote, permalink and so on...) and make them only pop up when I press on the comment?
When reading the comments of a post, the controls take away a lot of screen space. I don't want to interact with very comment, so hiding the controls would declutter the comment section imho
Example of what I mean in Sync for reddit: