Please don't apologize (much) or be timid about applying changes that protect the service, customer experience, and business as a whole.
But that means you are an unhip "lifestyle business" and obviously if you're profitable, you must be doing something wrong. How do you ever expect to have an enormous exit and make your investors rich?
But your response was quite informative. Backblaze is one of the few smaller tech companies I admire from a business side along with Fog Creek, JetBrains and Base Camp.
(I only noticed it a few weeks ago when I was surprised to see their address was Austin, TX)
Realistically, a large pool of users don't think about the long-term viability of a business (all they want is the world for $22 per month).