On Sun, Mar 05, 2017 at 18:14:02 -0700, Leonid Isaev wrote: > Isn't Arch BBS already providing list of usernames? The BBS's user list is only available to logged-in users. Although that is certainly not an extended privacy measure, it still prevents random people who just "pass by" from extracting the user list. > In general, though, I'd say follow the principle of least effort. Why just not > publish the list of usernames and that's all? This way, new users can easily > grep for them and don't need scrapers, and "researchers" can have fun... Because anonymisation: even if one dataset in isolation may look unsuspicious from a privacy POV, if combined with other datasets, it may suddenly reveal information that was not intended to be public. I admit that a simple one-column list of user nick names may probably not really be joinable with other datasets or -tables in any useful manner, but it is still not always obvious how data can be (ab)used (see also [1]). I would not give out the user list. Even if there are means for everybody to somehow obtain the data (with enough effort from their side), it is not the same thing as simply handing it out conveniently prepared and formatted. Best, Tinu [1] http://archive.wired.com/politics/security/commentary/securitymatters/2007/12/securitymatters_1213
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