I think it really depends on how big of a pivot and how good they were pre-pivot.
Rockmelt made one of my favorite browsers (UX-wise) in 2010-2011. A year later they pivoted to ... I don't even remember what anymore. But it wasn't at all a product I cared about.
"Betrayal"? I don't know. It just was pointless to me and I stopped using their products.
Would I have kept using their products if the new stuff they were building seemed useful to me? Yeah, I think so. They had enough credibility with me to give them a chance at another product.
Rockmelt made one of my favorite browsers (UX-wise) in 2010-2011. A year later they pivoted to ... I don't even remember what anymore. But it wasn't at all a product I cared about.
"Betrayal"? I don't know. It just was pointless to me and I stopped using their products.
Would I have kept using their products if the new stuff they were building seemed useful to me? Yeah, I think so. They had enough credibility with me to give them a chance at another product.