[Fogest]

Yeah, I have to agree with this strongly. I worked at a University before and it was only the super old employees still using plain text email clients, everyone else was using Outlook. Most of the reason for not switching was simply due to a refusal to adapt and learn something new. Especially since there are more modern clients that also feature hotkeys/shortcuts that still allow you to do things quickly.

The people who refused to adapt to newer technology also caused slowdowns in other parts of the workplace as anything new that would be implemented in any site/service had to also try to account for people who wanted to do things old ways, instead of the faster new ways. Because they had 100 scripts they'd use to make the old way not suck as much and viewed that as better than learning the new way.

Realistically nobody is 100% productive, and the slight seconds that may be lost using a GUI based email client over something plaintext is insignificant.

[zzo38computer]

There are other disadvantages of the working of many modern software programs though, including undesirable features, and you might not want to use the sender's formatting, and missing stuff, and stuff that doesn't work as well. Shortcut keys is not the only issue.