by B4n$h33
Leecher features:
Server Rotation
No-upload
Fake Queue
Share levels
no Share single File
Fakes Tags
Fakes Mods
Nick-Addon Thieves
Dynamic Spread Reask
Dynamic Boost Client
Manual Stuffs
Filter LowID
Auto-Kick System
Upload Management
etc.
Changelog 1.7:
add Anti-XS-Exploit [Xtreme]
add ChatLog [ZZUL BastarD]
add CPU load limiter [netfinity]
add Don’t draw hidden Rect [MorphXT]
add Drop stalled downloads [Xtreme/Changed B4n$h33]
add Fake Shareaza Detection [Xtreme]
add Fast Reask detection [Sivka/Changed B4n$h33]
add FileFaker detection [Xtreme]
add Gridlines [Morph4u]
add Never [...]

Changelog 5.4:
UPDATE : European Community V2 (umeK)*
IMPROVE : destory socket when serverconnection fail (DolphinX)
Fix : added forgotton CountryBlock main heading in bold (umeK)
FIX : added forgotton type indication on CollectionCreateDialog function (umeK)
FIX : Memleak on CArchiveRecovery::recoverAce (gureedo)
FIX : wrong data type in CAICHRecoveryHashSet::UntrustedHashReceived AddDebugLogLine (dontsueme)
FIX : hopefully a rare Crashbug on Partfile.cpp (umeK)
FIX/IMPROVE : many [...]

Features:
NOREPORT Version
- no upload and download report to tracker
- you will shown as leecher
- complete flag not send to tracker (no snatchlist entry)
REPORT Version
- only download will be not reported to tracker
- you will shown as seeder
- complete flag not send to tracker (no snatchlist entry)
ORIGINAL Version
- ads removed
and many more versions (stealth, fake upload, [...]