My conclusion in the #OnlyZaps experiment is that it should be an app's choice and not a user's choice.

Apps can optimize for offering reactions [x]OR or not offering reactions. Doing both well at the same time (giving the user a choice to enable or not) is a herculean (UX) effort for the small teams we have today.

Don't like the choice your client has made? Find and fund another client that aligns with your choice. I can guarantee you will be better served.