I've gotten the sense that GB can be a hassle. I'm pretty squared away with selling stuff on eBay, but I know it's not the same thing and there are way more things to consider. What has worked for me on eBay is letting the auction do the work and dictate the price the item is worth. I have seen others use this tactic on GB and it seems to work.
I know it can be sensitive asking folks on a forum what something is worth. Right now I'm following similar guns on GB I would sell and see how much they're getting for an auction to determine a round about price. Does anyone else have ideas on determining starting price?
From what I've seen in the gun world, PayPal is out. Venmo is a maybe? Most seem to use a personal check or a USPS money order for payment. Any other ideas? If I do FTF transfers I think I'll go to an FFL for the transfer. Advice here greatly appreciated. I've seen many here require phone call or video chat prior to a sale and I don't think that's a bad idea either.
The auction method on gunbroker does work, especially if the market is running well. It's fairly soft right now but not horrible. Penny auctions tend to sell for more than a reserve price auction, with some exceptions I'm sure.
Asking for prices here is just fine, especially if you intend to sell here as well. Folks sometimes get their panties wadded up and they can suck it. You won't offend the majority if you're having trouble researching and need help. That said, for most items you can look up past auctions on gunbroker (log in, do an advanced search and choose past auctions) and that can give you an idea of what to expect. Forum prices will sometimes be lower, but it's a good ballpark to look at. Ignore what folks have items listed at; look at completed, sold items.
Electronic payment methods are easy, and lots of folks use them. There's caveats to them all. No method of payment for an online sale provides much security for the buyer. If I send you money via PayPal, Venmo, Zelle (all electronic) or a wad of cash, a bank check, or a usps money order, that's all on faith that you'll send me a gun in return. None of those methods of payment are reversible. PayPal and Venmo have some built in protections for non firearms, but since we're talking guns here, there all in the same boat. If someone wants to pay you electronically, as long as they don't indicate it's a firearm purchase it doesn't cause a problem. If they write "Ruger no. 1" in the subject line, you might lose access to your account and the funds in it, which is a risk you take with those services.
I personally hate usps money orders. The post office never has enough cash on hand to fulfill them, so you have to schedule a time to go in and get it cashed. I'd rather someone send me a Venmo with a blank subject line, after a phone call to iron out details.
There's never a foolproof way to get scammed. A phone call helps a lot, to make sure there are no red flags. There moment there's a red flag, back out of whatever deal you're doing.