Ah, not really... topic subscriptions are considered (in my opinion) user private data, and that is not shared by default.
You could instruct your users to adjust their settings if they are being notified about a specific topic too often:
@baris said in how to merge topics in admin ?:
Clicking on the topic title should work. Needs better UX though since other tools work by clicking the user avatar.
yeap, it worked. Thanks. I was trying by clicking topic avatars as well.