vbulletin is maybe the most used - and paid for - software.
The captcha code, which is the picture that people have to decipher has been broken and robots are free to register.
astarmathsandphysics, astute, cei84352, Chengxu98, chjuanzu, emmelove02, furtick01, gene80, jkatie455, lanzudas, moaid123, ooaewiw72, seothriller, thebitbotdotcom, xuexiaos, xuq97789, yoguzuss, yqngjuanx, yunxing23, Zhanna, zouweia1
Of the 21 members above maybe 15 are robots - see the almost random names.