Good god, met quite a few, most of which are in the old thread, but will list them here for the reference.
In September 2013, I met Sprinterman without knowing who was, by simply having a conversation with him as he happened to be getting the same train as me (which was the WAG, which got cancelled) on Chester Station. I think I just asked him if he happened to be on RailUk to which he said yes and he was Sprinterman.
In February earlier this year, I was in Birmingham on the day of a forum meet with Class 92 (I don't know why I didn't put myself down for attending the meet to this day!) and happened to notice Yorkie and Mojo on the platform at Coleshill Parkway so we went down to see them and there were a load of members (Fahad, Crossover, SS4) and probably a few more. It was certainly unexpected, as I hadn't planned to meet them, but was aware there was a meet in Birmingham that day.
Around April-ish I bumped into ex-member, the right-honourable IanPooleTrains at Stockport bashing the 222 into Liverpool. He was with member Elarchibaldo and a load of others who could possibly be on this forum. Strangely enough I have not met Simon Poole. Around the same time, I took a picture of a unit at Crewe and turned around to see Class 92 behind me taking a picture of the same unit.
Moving forwards to May, me and my dad caught the same train as a load of members down to London on the Pretendolino. It was only when Mojo mentioned in conversation on a meet beforehand that I found out we were all on the same booked train. This was not really unexpected upon finding out, but had I had not been told, I would have boarded the train not knowing that all the forum members were on and it would have been a surprise! To the best of my knowledge it was; Yorkie, Mojo, theblackwatch, Max, Matt, BB21, IanXC, Trentside and Phillip Brown.
On the day of the TdF loco hauled trains, I saw theblackwatch photting from across the platforms at Leeds but didn't shout across as I wasn't too sure at the time who it was because I wasn't wearing my specs. Upon logging on here later that day I had a PM from him saying that he saw me but thought I might not recognize him. I felt a bit bad afterwards for not giving a wave though!
Later that month whilst in London, I boarded a DLR train at Poplar and MidnightFlyer sat in the seats next to me. Again, I had only met him once before so wasn't too sure at the time so I didn't say anything but when I saw he was wearing an Eagles T-shirt I knew it was him, but by the time I approached him, he briskly walked off to get to the other end of the train in order to nick the front seat! We confirmed later on that day that it was him via PM.
(nearly there!)
I found out that there was a member from my school on this forum (who has now gone to uni) and that member is ProfXavier who I used to talk to a bit in school. Also later on I found out another member, AndyMcl74 who goes attends the same school as me. Admittedly, I did have suspicion as I knew he was an enthusiast, and used to sit together on the train on the way to school. I bumped into him on Little Sutton station not long ago unexpectedly. There was also a case where I had played rugby against a member of this forum before he became a member here, and that guy was MiloNoblet, but I only think he joined here to ask something because I haven't seen him on here since.
And finally, I was at Manchester Picc with a load of other members when starmill pointed out someone working on the platform who was a member here, but don't ask me who it was, I can't remember!
Phew!
I made my presence very well known to him. 
