Wiki spam

Please nuke these users: Special:Contributions/Dfsdf, Special:Contributions/Ghfdhfg, Special:Contributions/Yifaput4, Special:Contributions/Lericuxi12345, Special:Contributions/Jfnjdf, and Special:Contributions/Dsgdfhg.

Also, a better CAPTCHA is needed, MathCaptcha is too easy.

I think a question-based CAPTCHA would work. Questions such as:

• Q: "Name a sample bot." A: One of ["Corners", "Crazy", "Fire", "Interactive", "Interactive_v2", "MyFirstRobot", "MyFirstJuniorRobot", "PaintingRobot", "RamFire", "SittingDuck", "SpinBot", "Target", "TrackFire", "VelociRobot", "Walls"]
• Q: "Name a robot base class." Q: One of ["Robot", "JuniorRobot", "AdvancedRobot", "TeamRobot"]
• Q: "What is the default battlefield size (WIDTHxHEIGHT)?" A: "800x600"
• Q: "What is the default number of rounds?" A: "10"
• Q: "What is the name of the sample bot in the 'samplesentry' package?" A: "BorderGuard"

etc.

Also: Special:Contributions/Spyindia, Special:Contributions/Dabbu, Special:Contributions/Nokakeddy, Special:Contributions/Ashish786786, Special:Contributions/Frankgel, Special:Contributions/Williamgrant, Special:Contributions/Marksdisoza, Special:Contributions/Rpaul9596.

On second thought, just IP-ban them all.