I stumbled across a (public-access) dissertation about feederism written in 2008, and it being the first (and perhaps only) research on the subject, I thought it might be an interesting read. It's nearly 200 pages long--double-spaced, thankfully--but here it is if you want to check it out.
www.collectionscanada.gc.ca/obj/thesescanada/vol2/002/MR43596.PDFThe research is exploratory in nature, and can be thought of as an establishing shot of the fetish. The author also frames their findings in the context of stigma (as a sociological concept) and how participants in the fetish manage or avoid the associated stigma (which is a subject I'm sure we're all quite familiar with). As with any good research paper, the author includes quite a bit of background information on the (limited and often misrepresentative) existing research on the subject as well as the terminology used in her analysis, which helped me--a relative lay person--digest the analysis quite easily.
Overall, I'd say it is a commendable piece that presents the kink with reasonable accuracy and keeps a clinical tone throughout, incorporating many primary source interviews from respondents found through Dimensions and Fantasy Feeder. (She does drop the clinical tone when she condemns some of the works she cites as being over-exaggerated; such works include blanket references to feeders as male and abusers and all feedees as female and victims, assertions which the author took great care to dismantle.)
There isn't much in the piece that anyone who has spent much time in this community wouldn't already know, but there are some choice quotes from the respondents (which I'll share below), the final list of questions respondents were asked (on page 146), and some opportunity for introspection as a community.
Starting off the quotes with quite a kicker:
I'm so used to running in communities with INTELLIGENT people who talk about sex, that it's really kinda frustrating to be in the feeder community, where most people (unfortunately) seem to be morons.
--Donna
Supporting Donna's point, one respondent had this to say on the topic of the author's identification as a BBW:
As a BBW, even if you never experiment with feederism, you owe it to a loving partner sometime to let them fuck your belly.
--Derek
I don't think she really owes anyone anything, and this hardly feels appropriate to say to someone who is trying to act as an observer...
Moving on, the author makes the observation on page 101 that many of her feeder respondents use positive terminology (voluptuous, plus-sized, full-figured, etc.) to refer to feedee partners, rather than "obese," "overweight," or "fat." She guesses that this usage is motivated by an avoidance of the stigma of having a fat partner. Personally I wonder if this practice has changed over time or if it was ever true at all--maybe it was only a way to sanitize the language they used with an outsider. Maybe the motivation is actually more about being affirming to others in the community and lessening the stigma feedees might feel.
On the next page, a quote on being "out" about feederism (rather than just appreciating fat partners) reads:
(I'm only out) with my partner and people I know through feederism... as a few of my friends have had bad experiences with feeder guys in the past, so I'm not going to be yelling it from the rooftops or anything.
--Susan
As a man, I have been spared the attentions of my peers for most of my life, and I'm curious to know about the experiences Susan is talking about. I can guess that these bad experiences run the gamut from objectification to outright abuse. The feederism community suffers for the reputation that such interactions garner for us, and I wonder why people think they would be a good idea (who is socializing feeders to be jackasses? There aren't exactly a lot of us. Is it white knight syndrome? Something else?) and what can be done about it.
Finally, an interesting observation from Donna again:
See, that's the thing with feederism. Most other people can hide their fetishes when they're done with them. You put the ropes away. You stop sniffing shoes. But for us, if we indulge in our fetishes IRL, we (gainers) carry it around us wherever we go. It's a little like being trans in that way. You can't hide being transgender. Well, you can, but once you start to transition, it's obvious to anyone who knew you before.
This is an interesting topic. There are interesting parallels as well as definite differences. Both someone trying to gain weight and a visibly trans person are often seen as alien. But being fat is probably less transgressive and they can hide their intent from strangers. On the other hand, a trans person might eventually pass, presenting as the gender they identify with, but a fat person getting fatter only grows further from the norm with each pound.