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Playboy image from 1972 gets ban from IEEE computer journals
(arstechnica.com)
This is a most excellent place for technology news and articles.
I wouldn't say that it necessarily expresses a certain opinion towards women. I think a lot of people used it just because that's how it's done. It's a piece history, a "fun" tradition. A lot of people didn't even knew that this was taken from a pornographic magazine.
However, thinking critically about it and considering a lot of good points, it's surely not "fun" anymore and I also think it's better to stop this.