This is something that's really been bugging me for a while, and in big part is why I don't play any miniatures games right now. Card-gamers tend to be split - about half will hate you for using proxies, about half don't care, but I've never met a miniatures gamer (myself excepted) who was okay with their use.
Let me start with a story.
I was a naive youth in university, and once a week there was a Starship Troopers miniatures night. A bunch of players got together for small casual games, big epic campaigns, and a bunch of different things. I'd played a couple of times using borrowed armies, but really wanted one of my own. I love Starship Troopers, and badly wanted to join, but had no money to afford units. Even if I had, model building is generally, imo, incredibly boring.
So I decided to build my army from scratch. Using wire, cardboard, paper mache, some clay and paint, I spent two weeks putting together a little Bug army, built to the standard point value for casual games which is all I really wanted to play.
Maybe the pieces weren't the most beautiful pieces ever, but I was incredibly proud of them. It was also clearly obvious what they were at a glance. I still have a couple of them around, and they occasionally get appreciative comments from those not familiar with the game.
So, eager to get started, I bring them to them game night, expecting a positive reception. Nothing could have been further from the reaction I got. They weren't just unimpressed, they were downright hostile to the concept, as if it somehow insulted them. I was derided, laughed out, and, obviously enough, never returned.
Now, it would be easy to attribute this to just a jerky group - except the experience of building the units was so enjoyable and so fun, that I found a couple other groups of miniatures gamers with the idea maybe I could pick something else up and build another custom set and play that instead. Every single one I talked to was hostile to the idea, but none of them could say why in a way I understood.
So my question is, do people here have that same reaction? If so, what's wrong with using these homebuilt pieces? How do you feel about proxies in general, say mixed in with a regular army?
tl;dr
Are proxies and homebuilt unnoficial units ok with you, and if not, why?