@john32123666 A couple of clarifications: A client can have up to 100 torrents listed as leeching, as long as most of them have downloaded everything the user wants to download. Suddenly adding 20 new torrents will put some of them in a queue until the first 10 or 12 download what you want, and then start downloading the rest. There's no need to keep checking back to see if those slots are open.
Also, in uTorrent 3.5.5 (and perhaps other versions or clients), the queued downloads are grey, not red.