My youngest sister (26F) married her husband (late 20's to early 30's M) a year ago, and last weekend was the first time I (41F) saw him since their wedding. Our family spent the long weekend at our parents' house because my mom's birthday was on Saturday, and during that time my husband (54M) and I spent a decent chunk of time talking to my new brother-in-law.

Monday evening, he asked us how we met, and my husband told him that we met through his Craigslist personals ad for a person who'd be willing to go to museums and the library/bookstores with him and would be open to the prospect of either a platonic or romantic relationship. My brother-in-law made this sour face when he said that and I asked him what was wrong. He tried skirting around the question at first, then said that it was tacky that we met that way.

I was peeved at that and asked him why he'd say that. He just said that "the site was shut down for a reason," and I said that's true, but I didn't see his point. He just repeated what he said, and I then asked him if he was trying to imply that we were lying about the nature of the ad that we met through. He said no (and given the way he responded, I believe him), he just thought it was a tacky way and place to meet.

I said he was being hypocritical since he met my sister through Tinder and my husband's ad was basically the same as any brief dating profile. He said that was different because Tinder was for dating and Craigslist personals weren't. I said that wasn't true, Tinder is for hookups and for dating and the Craigslist personals were for the same thing. I also said that even if Craigslist personals were more for sex than Tinder is, that doesn't somehow make how we met any worse or tackier since that isn't what we were seeking out. He said that it was still different because the sites were different, and I said he was taking an idiotic position. After that, we moved on to talking about other things.

Frankly, I wouldn't have given this a second thought, but my sister came up to me later that day and said that I should apologize to him and that I'd gone too far with calling his opinion hypocritical and stupid. I said I really didn't think so and that he could express his feelings to me directly rather than through her. My husband, for the record, agrees with me, but I do wonder now if I might have gone too far.