First, thanks for the thorough answer :-)

On Sunday 04 March 2007 18:29, Christian Biere wrote:
> I my opinion, spam et al. is responsible for most of the problems.

Oh, good point. I didn't even think of that.

> As LimeWire did not support
> any IP address block lists until a few weeks ago a lot of traffic was
> wasted for spam.

Does this mean that this will get a bit better in the future?

> mp3 files simply have more sources

Only if you share mainstream content. My files tend to be more rare.
Also, this doesn't explain any change, because it has been so ever 
since.

> It wouldn't be too difficult to add this feature. There are some
> awkward details though. Should these files be shared just like any
> other files i.e., reported in search results? Or maybe only reported
> to SHA-1 searches?

I would personally prefer the following behaviour: 
Directly after a completed download, if the user doesn't touch anything, 
the file keeps being served and advertised forever, but only through 
the mesh, not through any searches (this resembles bittorrent). Then, 
as soon as I manually hit the "clear from download list" button (or 
touch the file), the file becomes a "local" file and is treated as 
such, i.e. it is only shared if it is in a shared folder, but is then 
also advertised through search queries.

> Regarding the download mesh, it's not really very
> smart. For example, we never try to check whether those sources still
> work. They just expire after some time. That means often they expire
> too soon and other times they expire too late.

I don't completely understand this. Imagine someone was told through the 
mesh that I have a specific file. Now this someone downloads a chunk of 
that file from me. In this case, he knows that I am still a valid node, 
because he tested it. So my entry in his mesh list should be renewed 
and advertised as such (or however this works exactly).

So how can I ever "expire" as a source when there are always people 
downloading chunks from me, thereby verifying that I am still a working 
source?

bye,
Hauke Hachmann

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