Overzealous spam filter triggers on Chinese characters in the "Help and Improvement" queue
5453
Unable to post Chinese characters due to validation filter
98218
Stack Overflow in ES, PT, RU, JP have mixed-language descriptions
144976
Blocking comment spam without using captcha
55959
Minimum number of characters to change is problematic
5057
How do I spamtrap with Postfix?
125850
Why is "&#8203;" being injected into my HTML?
157076
Obtaining text of spam/offensive posts
57091
CTRL-Space always toggles Chinese IME (Windows 7)
82427
Subscription bug: receiving emails for questions with tags that do not match my filter
65142
Translation help review queue?
139180
Why is my e-mail still being picked up as spam? Using mail() function
26135
Having problems with listings and UTF-8. Can it be fixed?
46422
How can I prevent spam on sites which I control?
13820
Spambots causing server crashes. How do I block them?
97434
^@ spam in tty (but seems to be system-wide)
123216
Massive spam users and spam entries despite triple layer protection
22293
Can a machine be taught to flag spam automatically?