Gathering information from a website is very different than publishing it verbatim.
I am not a lawyer, but I think it comes down to website Terms of Service enforceability. I don't know what the precedents are, but I would guess that a TOS that went against the nature of how the web is reasonably expected to operate would not stand up in court.
I don't think it's a copyright issue; facts are not copyrightable and by using the data in his research he's not using their presentation of the data.
I am not a lawyer, but I think it comes down to website Terms of Service enforceability. I don't know what the precedents are, but I would guess that a TOS that went against the nature of how the web is reasonably expected to operate would not stand up in court.
I don't think it's a copyright issue; facts are not copyrightable and by using the data in his research he's not using their presentation of the data.