[Homunculiheaded]

I take it you haven't submitted to many CS journals ;) Last time I made a submission to the ACM I had to essentially hand in a publication ready pdf, this is true for the vast majority of CS journals. Additionally I've published in open access journals outside of CS where I did just have to submit a word doc and they took care of the rest.

Additionally I've known plenty of editors who do many of the things you mentioned above for free (for paid journals) with the only reward being bonus points for tenure.

Considering that there the costs to creating software are much higher (simply because unlike journal articles there's no real incentive for devs to give away there rather price labor, other than just wanting to give back) and we still have a thriving OSS eco-system I find it very hard to believe that we can't easy substitute out the very few parts of academic journals that do incur some sort of real cost for the publisher with volunteer work.