It would be nice, but it should also be kept in mind that CS is a free site that is funded solely by the support of C$ and ads. To reasonably add another coder, you would either have to ask for a volunteer that isn't necessarily trusted or pay someone. A lot of people who know code do it as their job and as such charge for it. Not a lot of professionals going around offering to code for free.
I do see potential in volunteers, but the issue with that is that they aren't necessarily committed to the site. They might end up wasting staff time or take advantage of their coding knowledge. Most of the people interested in CS are young and may be interested in coding, but not have an advanced amount of experience in it. The few of them who are professionals would probably see CS as a "side" project.
While the staff are volunteers, moderation in general is a completely different ballpark compared to coding. Moderation isn't really something people make a career out of. You could of course make the same argument for art. But it can also be argued that due to the site's usage of lineart, it is much easier to draw. From what I'm seeing, one artist typically does one litter a month, with some doing two litters a month occasionally. Massive and more unique litters such as Staff September are done by the entire team so it's manageable. Store pets which are always the most distinct cost C$ and thus are technically bought pieces. If anything, the most difficult things artwise are probably items, which don't have lineart. Even then, many of them are built to fit on pets. Either way, building art on CS I feel like isn't as much as a commitment it would be to code for the site.
Overall, more coders on the team would be nice, but I think it's not as simple to get more than everyone would think. I feel like at least one or two more coders would be doable and benefit the site. Even just a few more coders could be a great assistance. People have been complaining that there have been no quality of life updates in quite a bit, after all.