Not yet, but I'm planning to get into it.
I've actually been posting regularly on Dtube. I started getting downvotes on Hive, so that's why I stopped cross-posting. But Dtube seems to be going downhill, so I'm giving 3Speak a shot now. I expect to be downvoted to oblivion on Hive again, but at least 3Speak itself seems to be a project with a future....and with its own token. :)