You don't gather usage data without informing the individual you are gathering it from. It's a violation of privacy. This is completely unreasonable.
[1] By normal user, I mean the non-Linux-guru type that wouldn't think to try all the nonobvious workarounds. This clearly is no problem to the 'You only get to use Linux if you submit patches' crowd, but should be a big problem for roughly every other open source free software crowd.