Scamming passive users in ADC

Being in passive mode in ADC sure its disadvantages; less search results and less download sources. However, this also works the other way; you have to respond to less searches and have fewer potential uploads (because other people are in passive mode, too).

Why would anyone consider being passive as advantagious? Well, if you’re intentionally passive when you want to and intentionally active when you want to.

Consider the case of a download in active mode; You log in, broadcast to everyone your IP and port so they can connect to you (and you’ll be able to download) (“CTM = connect to me”).
Consider the case of a download in passive mode; You log in, ask whoever you want to download from what their “connect to me” is, and you connect to them.

Now what if I did a little scam? What if I logged in, not publicly but privately sent a user my IP and port, and did a “connect to me”? And afterwards I’ve sent the CTM, I’d just (privately again) send “I’m passive again, so I’m resetting my IP and port”. But your ongoing client-client connection would still be active.

What this will do is that only the active users in the hub will be able to download from you, and you won’t be relayed download requests by users who aren’t active. (Or if you are relayed, you can just ignore them “as you won’t be able to download from them”.)

This also works in searches. When you want to search, simply broadcast your info so people can relay the proper amount of search results to you. When you’re satisfied, just reset your information.

Note: This all could also be used as a way of saying “hey, I publicly said my port was this, but it’s shaped, so if you want to use one that’s not, use this port.”

(Note: I’m not sure if this all is possible in NMDC, because there’s no notion of “send only to a specific user”.)

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