How many stack overflow questions and answers are there for lisp(s)? How many for Java? How many applications on the web are written in a lisp? How many are written in Java (or Python or Ruby or PHP)?
There's a lot more to accessibility than how easy the syntax is to grok. This is just one simple and limited example.
>How many stack overflow questions and answers are there for lisp
Yet there are a ton of books written about Lisp in all kinds of topics and applications. Not to mention really well-written tutorials like "Practical Common Lisp".
Plus, the documentation/reference of the language itself is comprehensive and well written, comparing favorably to the documentation for most programming languages out there.
It's more time consuming to close )}]]})}. With ))) we just repeatedly type ))) until the cursor jumps to the target opening paren we are trying to close. With a mixture of different parens we have to interrupt what we are doing and determine the correct parens which will continue the closing sequence.
I think there are people who value completeness- they enjoy working on systems with many rules tailored for specific use cases, and like accumulating knowledge about which rule is the correct one to apply in each situation; and there are people who value open-endedness- systems that have few simple rules that can be combined to obtain novel and unexpected results, even if these are not as optimized as they could be in a more complete system.
I picture the difference as that between a role playing game and chess: complex, domain-specific rules on one side, simple and abstract rules on the other.
Not really. You can't comment on this until you tried a lisp. I know that you haven't tried it because if you had you would have known about paredit and how it solves the paren problem.