Sorry, i have to clarify you sentence. A few maemo.org service are protected with a set of blacklists that COULD contain tor exit points since they are OFTEN included into blacklists.

There is NO particular will to punish tor users, but, on the other side, there is no will to whitelist some ip that has been recognized as well known source of attacks.

(This should explain how tor users appear on the web. Yes, they are hiding their identity but they are also appearing as the less desirable users that a web service could have, mixing their requests with a lot of _well_known_ malicious traffic)