Add me to the official old timers group. 50 here and been using MDMA for around 15 years or so. Started drugs at the age of 15 with weed, then used speed (yum), acid, mushrooms, benzo's and recently a few choice RC's. MDMA is my drug of choice though.
Throughout, my secret of survival is MODERATION. That's key. Oh, and listen strongly to your body. It has a way of telling you what it can put up with if you care to listen. I know for example that alcohol is very hard on my body. Strange that. The one legal substance I use to expand or alter my perception of reality is the most harmful eh?
Anyway, here's to another 20 years of altered states. I mean, how the hell can you walk away from such a magical area of consciousness? It's like going on holiday to your dream destination then saying....naaa, done it now, no point in going back. That would be silly. There's always new things to discover.
I've said this before on similar threads, but the one thing I find sad is the fact my partner no longer likes to experiment (apart from weed). Most of my old friends have died or given up, so my problem is finding people to share the experience with. I know a lot of people on here use in isolation. I've not done that yet, but I feel I'm getting close. And that, I find sad. I prefer to share tripping/rolling with people as I can feed off it.
So yeah, if there is a down side for me, it's loosing a like minded social circle.