Hello t t,
Yes, you should be able to click the title or the time stamp, and then along the right hand side there will be options to edit or delete. There is also the Actions choice at the bottom of comments made from my end that allow for editing and deleting although I'm not sure what the interface is like exactly on your end. You can refer to the Geonet thread below which has additional information about this topic.
I hope this helps!
Michelle Mathias Looks like original poster of this question got creative and edited the post and the heading to "Deleted", which kinda kills the post anyway if someone where seeking the same thing later on. Might be hard to eliminate something like that from happening under the current capabilities.