One of the goals of the syntax and the language is to be easier to read and understand. There are languages that put even more stress on readability (poor COBOL). I think PureBasic ranks well in its readability.
How does this affect its execution speed? I don't think it affects it at all, the executable is a machine readable translation.
How does this affect the speed at which you code or enter a program? Well, if contains elements of spoken languages (familiar to people) and you have tools such as auto-completion. I don't think there is too much typing required to express a thought (unless you type very slowly), usually it's the thinking speed of the coder that runs slower
I get a very negative vibe from you.
@Primoz128: I agree with GeoTrail, you seem to be on a negative bent. If you are on a negative bent, my saying so probably won't help.
It may just be the way you express things, if so please ignore the comment. It just seems that you would rather spend your time expressing your angst why PureBasic isn't something else.
If it is just a matter of questioning how you would accomplish something in PureBasic that you know how to do in another language simply ask those questions. I mean getting your programming questions answered seems like it would be more useful than merely standing on the fence and asking which side of the fence has greener grass growing on it.