Everything in user interface design is a trade-off. There are many usability and accessibility and readability and design factors that every interface designer must balance and trade off against each other.
So of course usability can decrease usability, readability can decrease readability, accessibility can decrease accessibility, beauty can decrease beauty, and all those desirable traits can decrease each other, because there is no one single "technique" you just apply mindlessly to achieve any of those goals.
There are many many ways of achieving (and ruining) each of those goals, and you constantly have to balance and trade them all off against each other.
If somebody is so lazy and careless and poorly educated that they always use links saying "click here" as a solution to their problem of not being creative enough to come up with a better more descriptive link, I can guarantee you 100% of the time they are not going to give a flying fuck about aria or even have a clue what it is.
So of course usability can decrease usability, readability can decrease readability, accessibility can decrease accessibility, beauty can decrease beauty, and all those desirable traits can decrease each other, because there is no one single "technique" you just apply mindlessly to achieve any of those goals.
There are many many ways of achieving (and ruining) each of those goals, and you constantly have to balance and trade them all off against each other.
If somebody is so lazy and careless and poorly educated that they always use links saying "click here" as a solution to their problem of not being creative enough to come up with a better more descriptive link, I can guarantee you 100% of the time they are not going to give a flying fuck about aria or even have a clue what it is.