Firstly, I must apologise for the subject text. It is hardly an endearing opening likely to garner support.
However, I do stand by it in some senses. I apologise too for choosing to not include some examples to back up my statement below.
As a new to the LISP world with fresh unbiased eyes...I see it like this: LISP has many flavours and that doesn't help and to make matters worse, [some of] the libraries of modules/apps/etc that are available only work with the certain flavours (or are tested to work with) and not others and then....well there are a few other things.
This makes the whole thing a bit of a bind. Of course one could pick a flavour and redevelop/resolve the stuff one requires (perhaps using a base of code from some of the hard work already gone in elsewhere) to work with one's chosen flavour if it is causing issues, but that defeats the object of shared open libraries of hard work and skilfull effort already gone in.
It is a shame as LISP comes across to me as intriguing - I've know about it, seen it rarely, never experienced it until delving in of late.
What would be great - as with the effort of 'common lisp' to bring some order to the previous - would be if there were not many flavours, but one and libraries were working with the one LISP...as in LISP is LISP is LISP.....when at the moment it is not.
I dont find this happens much (in fact at all) with other languages/environments I have encountered.
Still, I am very intrigued by LISP for some reason..should have got involved years ago.

Perhaps I am being too harsh....but it may be another reason why the perception of LISP (at least that I have read from critiques) is as it is in some areas...care about that or not

Cheers. I bat on.