Why do I get so many captchas?
130928
Why am I getting captcha more often?
64788
Combined flair is showing hidden accounts
158403
How to avoid getting spam through a website?
120612
Too many Custodian badges
96523
Is there a name for "the string of characters typed randomly on a keyboard home row"?
44221
Why do I sometimes get repeatedly prompted with ">" in the terminal?
102848
Stack Exchange API too many requests from this IP address
30409
Prevent malicious bots from posting spam
61517
Why should we ask the password twice during registration?
95021
Why am I being redirected to a captcha when I am just searching?
80798
Brackets around tags disappear from search after captcha
56991
The reCAPTCHA has become too difficult for humans to solve
116193
Seemingly random reputation gain of 1
70271
Why am I getting so many "yearling" badges today?
76831
Stack Exchange Inbox Items Duplicated (And Then Some)
149974
Add captcha threshold information to privileges page
47603
Usernames as Advertising or Spam?