Thanks, I understand, in most cases it might not be a large improvement, but sometimes it can be. Some batches will simply be older releases repackaged because CR changed nothing, others may have changes.

It depends on the series, CR's typesetting has varied between "nothing at all" to "\an8 bold and italics" to "minimal tasteful typesetting" (some positioning, maybe a different font) to "motion tracking and fancy typesetting", this depends on the series, no you're not going to get 8MB .ass files with vector graphics, but I sure as hell will prefer "minimal tasteful typesetting" or better when the earlier release was basically almost SRT with nothing on it.
If good fansubs are available, then that should be watched, but over 50 series come out in a season, few will get graced with good fansubs, the majority of releases will be from CR, and if they do fix the subs sometimes, it's best to use that version rather than whatever first came out. If you want an example of CR doing actual typesetting, check for example, yesterday's https://animetosho.torrentbay.st/view/subsplease...v.n2059446 this has some motion tracking. Of course you will also find many releases that have absolutely no typesetting. CR has its limitations as to what fonts they use, but on shows that they do some typesetting, they can strike a reasonable balance, look for example at "Ruri no Houseki" or "Sozai Saishuka no Isekai Ryokouki" (later fixed version).
Anyway, thanks admin, in practice most of the batches won't have major improvements to subs, but rarely some do.

Hate to tell you but CR's typeset isn't that good either. There's nothing to gain really by fetching those.

Thanks for the suggestion.
Generally files that have already been processed are avoided, and most of SubsPlease' batches fall under this, so get automatically excluded.
If there's something you (or anyone else) want, you can put in a request and it can be reviewed.

Note that subtitle extraction/archival is not a key goal of this website.

Recently the SubsPlease batches seem to have been added to the skipping policy, unless they count as duplicates?
It would be a good idea to at least keep fetching the smaller ones like 480p (that should easily be under 8GB), as SP has been trying to do batches with fixed subs where possible and these might not be available from other releasers, it's less about the release itself, and that animetosho extracts the subs and archives them, so for people that already have the releases and just want updated subs, it would be really useful.
Updates subs are because CR has been doing SRT-tier subs first and then later updating with properly typeset versions, this mostly applies to subs this season, but at times they've done updates to older season subs.
So if admin can at least fetch the small ones, that would be great.

No, both platforms are fetched. Some appear on both platforms, while others are exclusive to only one.