Self Harm via Too Much Information?

Can knowing too much influence your actions to act against your self interest? Can a business be too transparent with its clients? According to the Floridi-Turili article on transparency, the ethics behind transparency is a bit more nuanced than simply good or bad. 

It states that information transparency isn't an ethical principle in it self, but rather a condition for enabling or impairing other ethical principles. To illustrate this, I'll use an anecdote from my internship where I worked at a job search site. 

This particular site had millions of users every month, and my goal was to show relevant jobs to users. One initiative was to allow the user to "dislike" and remove a job posting that they didn't like, and the confirmation read "we'll stop showing you jobs like this". However, during user research, some jobseekers were hesitant to use this feature because they didn't know what "jobs like this" entailed, and were afraid it would prune out jobs postings that they may have wanted to apply to. 

On the other hand, the usage data showed that users who used this feature saw more relevant jobs, indicated by the increase in the job click through rate & the number of applies.

Empowered by this data, I changed the confirmation to "This job will no longer appear in your search results" in the next iteration. It no longer mentioned anything about affecting other job postings similar to it, but I knew we would still stop showing similar jobs. Again the usage data showed increase in the positive metrics, but this time even in larger amount due to the change in the wording.

Now learning about the ethics of information transparency, it makes me think deeper if withholding information to encourage a certain behavior was unethical, even if the outcome was positive (connecting users with more relevant opportunities). In this scenario, not disclosing the algorithmic implications of disliking a job may prevent accountability on my part of potential lost opportunities for that jobseeker. Perhaps I should've even shared the usage data that helped me justify the change of wording in the first place, reciprocating the information empowerment back to the users so that they could make an informed decision?