Sounds dodgy, if they've hospitalised a few people, but this is the Mail we're talking about, so it's pointless speculating.
I realised that I didn't come back to report on my experience with the M&Ms. I've had them twice, now and they're definitely up there with the handful of decent presses I've had over recent years. The first time I had them, I took a full one to start (as is the norm for me), and after 20 minutes my head was spinning, and I had my usual bout of throwing up. It absolutely knocked me for six, so I'm glad I wasn't out, because I would have been sat in a corner, trying to compose myself. The mate I did them with came up at the same time, and was equally as spannered. Despite the dose, the high was pretty clear-headed, music appreciation was definitely heightened, and they were lovey enough, with enough energy to move around and not just mong out. Lots of eye rolling and even some wiggling, which I only seem to get from decent MDMA. Had the urge to socialise and FaceTime my girlfriend, not that I can remember much of it. Did 2C-B afterwards and all the next day, and felt great.
The second time I had them was with the missus. We started with half, which didn't do much, but the second half hit me just like the first time - quickly and hard. At this point, the missus got quite mongy, and spent most of the night lying down and just enjoying the music, whilst I was once again fairly energetic and chatty. We had another one, in halves and she entered the 'What was I just saying?' phase, which lasted for the rest of the night, so conversing was hard. She was also very hot, so I'd say tread lightly with these, if you're not used to large amounts of MDMA. In all, very nice. Not sure if they're still available, but would definitely do them again.