What is 'low-traffic email list'?
It[Giving] can be as simple as serving as a moderator for a low-traffic email list.

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The sentence is about contributing or giving to a community.
What is 'low-traffic email list'?

Question

What is 'low-traffic email list'?
It[Giving] can be as simple as serving as a moderator for a low-traffic email list.

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The sentence is about contributing or giving to a community. 
What is 'low-traffic email list'?

Answer

It means that there is a small amount of exchanges (data traffic) among the participants, so that reading the emails should be not much time consuming (unless they contain philosophical dissertations in obscure languages). 
The low traffic value stems from a time average of the data exchanges.

Answers · 2

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