I know people have been against housing rat snakes communally, for arguably good reasons, most notably the ability to individually monitor a given specimen's feeding, digestion,and shedding.
I originally intended to house my hatchlings individually--even bought a bunch of used kritter keepers to serve that purpose. I was nervous with the security of some of the lids, and opted instead to house them in two ten-gallon tanks (one contains the five females and the other the seven males--note, I have the hypo glades male in quarantine).
I am now in favor of the communal housing. All things equal, the rat snakes themselves opt for each other's company. A hatchling snake will feel more secure in a group and out of three hides will choose the hide with other rat snakes as opposed to coiling up alone. Temps are even in the cages, as there's been no need for an external heat source at this point.
Perhaps this behavior can be attributed to "safety in numbers," as in schooling fish. Whether this is true or not, some sense of security seems evident in their cohabitation.
Interestingly enough, years ago I temporarily housed two female corn snakes together. One was extremely nervous, but actually became a calmer snake while the other shared the cage. I believe this is because the nervous one got used to being "touched" by the other snake, and therefore stopped associating a physical interaction as something to respond negatively to. Both corns continued to feed well and bred that year.




