Wot? You're holding it wrong. With jj you use raw hashes far less than git.

When you start, you use bookmarks mostly because your using as alternate porcelain git and still thinking in terms of git HEAD. Later you will grow comfortable with stacks of changes, and then you will start using change-id's (not SHA1's). Much later, you will learn revset's, and create a few revset aliases of your own, and be moving around the commit tree so fast a git person looking on won't understand what's happening. Then, one day, you will be forced to move back to git, try do to something, and wonder how you every did anything with it and hate every minute you are forced to use it. That's over a year away.