Forced Subscriptions are not Charity, they are Advertisement
Currently I had to experience being gifted a subscription in a chat I just joined to listen to out of the blue. I immediately followed (because you might as well) but then I unfollowed and then disabled the subscription.
The Twitch Streamer then acted offended that someone would not want a subscription.
It is my belief that you should refuse unwanted gifts because they give the wrong impression. Given the reaction from a simple refusal it is no longer that these subscriptions are gifts but forced advertisements.
I request that you have the option to turn off subscription gifts (aka: Forced subscription).
I should state, I refer to the ability to turn it off for your own account, not your stream.