In accepted answer to this question:
@Allure states that:
Your friend is probably thinking of Sci-Hub. Warning: it's likely illegal, including to use the service (as opposed to uploading stuff onto it), in most jurisdictions. If it's not already illegal in your jurisdiction, the trend is towards illegality (i.e. lawsuit after lawsuit has been ruled on, and they are usually in favor of the copyright holder).
The first claim is qualified with "likely"; but - @Allure knows this not to be the case, since we've debated it before. He should, at least, have mentioned that his claim is contested (and not marginally; to my limited knowledge, the opposite of his claim is the truth - downloading from Sci-Hub for the purposes of research is likely legal in most places in the world).
The second claim is a factual one. I admit I have not made any sort of legal survey, but I have not seen evidence that this is the case; and given the other dispute, I doubt such evidence exists.
Now, I can comment on the answer, but it would be the 10th or 15th comment, while the answer itself - other than the claims of illegality - is useful, and is the accepted answer.
What should I / can I do, seeing how I believe readers are being misinformed?