[tor-relays] Why do 40% of Tor exits uses 8.8.8.8 for DNS resolving ?

[Toralf Förster]

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Reading [1] I do wonder about that.
Why do Tor exit relay operators avoid installing a local resolver - or at least simple a cache as shown in [2] ?
Adding different nameserver= lines to /etc/resolv.conf than 8.8.8.8 shouldn't be a big thing, or ?

[1] https://nymity.ch/tor-dns/tor-dns.pdf 
[2] https://zwiebeltoralf.de/torserver.html

- -- 
Toralf
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