I still lurch around once in a while. Most of the reason I don't post online that much any more isn't because of Facebook or other platforms (I rarely post on those either), even though I DO know that's the reason a lot of people don't. No, I've just found things I enjoy more than posting online. I realize it sounds a little bit selfish sometimes, but I've come to a point in life where I'd rather be driving my car / truck, working on my car / truck, riding my dirt bikes, hiking, traveling, spending time with family, etc., instead of posting online.
When I first started posting on online forums, roundabout 2007, I can remember a few guys that were maybe 10 years older than me saying the same thing, that they were "retiring" from the onslaught of forums posts in the early-mid 2000s in favor of actually doing other things they enjoy more. I vividly remember thinking that that'd never be me, but here we are ~10 years later, and they couldn't have described me any better.
I actually sold my car, my baby, a few months back. I also remember saying that I'd never sell it, since it was my first car and with however many thousands of hours I have into it, but here I am. Surprisingly, I don't really miss it. In the pursuit of going faster and faster, I (unknowningly at the time) took it beyond being fun. I hardly ever drove it any more (barely 2000 miles in the last 2 years I owned it), and it sitting that much created a lot of problems that I'd never encountered when I drove it 20k miles a year. Every time I drove it, it seemed there was some new problem that came up that'd take half a weekend to fix. So I stuck it on Craigslist not expecting to get rid of it any time soon, and I'll be damned if a guy didn't come and bring the full asking pricing in cash the very next day.
As alluded to, my hobbies have changed quite a bit. I spend a lot more time simply outdoors, whether it be hiking, camping, just relaxing, etc. I started riding dirt bikes a couple years ago, and found that I enjoyed that MUCH more than I ever enjoyed racing cars. I also got around to buying, and currently modding, the diesel truck I've always wanted. But I learned my lesson with the car: don't forego fun in the pursuit of fast.
That said, one day when I've moved to somewhere with some more space, and I've got the cash sitting around to burn, I'll have another Mustang. From the day I bought my '98 when I was 15 years old, until today, my absolute favorite Mustang in the world is a 2003 Sonic Blue Cobra coupe. And one day, I WILL have one.
Until that day, you probably won't see me post on the Mustang forums very much anymore. Like I said, one side of me feels a little selfish being like that, since I can undoubtedly help a lot of people with what I've learned over the years. But the other side of me simply says that it's time to look back, remember the good times, and move on.