Thanks, Bruce.
Stupid mistake from my side - I was searching under the Hashtags main header, not under Admin. Found it now and did a JSON export of the hashtags and all the associated info, in my group. That should be easy enough to process, and sort using the field ?topic_count¡°. A ?message_count¡° might also be interesting, I¡®ll look into that too, using an export of the messages.
Kind regards
Thomas
Thomas Gruber