What's the difference what kind of person highlights the text, because you can cook to put in once all, but to force the user to do something. I consider it unnecessary, or rather the less you will be forced to do something, the more people will enjoy
The same slubna Ctrl-Enter, it will use very little, since it is necessary to press and in General it is necessary to understand what is happening, you want to force users to think. And need to go to the opposite, they do not need to fight, to help, and thus to press, I would not require.
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On the second point, you wrote an interesting idea, that man immediately after isolation to write, so I was. And this is very true, another thing is that if the person has not started to write anything, what then?
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This whole idea lacks something tasty, or whether privacy to twittre felts earnings and affiliate programs, I thought once many to come, I polateli more interesting ideas.