Alice (not the real name) has a STOC submission with Bob and wanted to
put the paper on a public archive. Bob insists that the paper not
go public until the "exposition is perfect", which if taken
literally means never. I told Alice about a phrase my wife liked to
use
Don't let perfection be the enemy of the good.
I hesitate to write this post because we far too often have the
opposite problem, authors who take their hastily written
deadline-driven conference submissions and just put them out on the web in
its messy state. But aiming for that impossible perfection in the
exposition spends considerable time making tiny changes to an abstract
that, in most cases, no one would have noticed. One can better spend
their time in other ways, like doing research for the next paper.
So take a little time to clean up the conference submission but then
don't worry about every little detail. As soon as possible make it
available for all to see. If there are problems in the exposition,
people will let you know (especially if you fail to cite their
research) and you can fix the paper accordingly. Psychologically you
will feel better getting that conference submission you had spent that
hard concentrated effort on out of your mind, until it
(hopefully) gets accepted and you have to work on the proceedings
version.
There is also the issue of conferences with anonymous submission. In these cases, posting your submission will likely "out" you to potential reviewers. In crypto, the IACR has explicitly said this should not count against you when reviewing CRYPTO/EUROCRYPT/etc. papers, but it is a concern.