I was limited in what I could write in the post, but this was something that just hit me after years of being able to log in with my username/password on Yahoo!

I was limited in what I could write in the post, but this was something that just hit me after years of being able to log in with my username/password on Yahoo!. I'm sure it was a well-intentioned guard against spammers that mercilessly attack Yahoo! accounts, but it's effectively locked me out as a genuine user. I'm definitely miffed because it'll cost me, but at the same time, I implement systems like this for small businesses for a living, and it's a constant thing on my mind how what I do will impact users down the line. I get so nervous about inadvertently pulling something like this!