Dislike of a particular aspect of a product doesn't need to be concrete/provable - a vague feeling of "I don't like this so I won't use it" is all it takes.
With Pocket in particular, the bundling with Firefox moved my impression of it from "this is a potentially useful tool" to "this company feels like they need to force their product down my throat by bundling it with a browser - I don't know why they're doing that but it makes me not want to keep any data with them"
With Pocket in particular, the bundling with Firefox moved my impression of it from "this is a potentially useful tool" to "this company feels like they need to force their product down my throat by bundling it with a browser - I don't know why they're doing that but it makes me not want to keep any data with them"