I get your point and had the same thought about privacy.
For me it's more the "I worry about her/him" and I'm sending site mails from time to time (not too often though, I don't wanna spam them!). But when there is no answer at all, and I see, the last activity was about 2 years ago, I doubt, it has something to do with the upload frequency. 
And usual I'm sending mails before I buy something, that has helped me a lot in the past. To know, that it's really, what I'm looking for makes the decision easier to buy :)
So there isn't a thing you can do about it.

Sadly any thread will disappear into the archives ways too fast. So making posts in the hope, someone will react is pretty useless, cause people look into the forum, see nothing, and for sure, if they aren't searching for some specific answer, they will leave and not search the archives.

But really thanks for your answer :)