Somehow this topic comes up again and again. Is this some kind of scam attempt?
This specific thread? Maybe, maybe not.
In general though? Yeah, I suspect a lot of these "Someone I know was mining in 2007" and "Someone I know received some bitcoins back in 2005" messages (years chosen for comical effect) are related to either the friend being scammed, the poster being scammed, or an attempt to scam unsuspecting members of the forum.
I am trying to help a guy with a project. He mined bitcoins back in 2010, 2011 or maybe 2012.
The more they can remember about that time, the better the chance of figuring it out.
If they started in 2010, then they were almost certainly CPU mining with just about any desktop computer. There's a very good chance they were solo-mining using Bitcoin-Qt and any bitcoin they successfully mined are stored on the hard drive of the computer they were using at the time (and nowhere else). Mining would have been as easy as just downloading the Bitcoin-Qt software and runing it.
If they started in very late 2010 or early 2011, then there's a pretty good chance that they were using a computer that had a very good graphics card. In that case, they may have had to download some specialty mining software along with Bitcoin-Qt and needed to figure out how to configure it. Around this time the first pool (Slush's Pool) started, so it's possible they may have configured their equipment to use that pool.
By mid-2011 FPGA mining was catching on and CPU mining was all but dead. GPU mining was still viable, but it was fading fast. The chances that they were pool mining is increasing at this point, and there were an additional 2 or 3 pools that opened up I think.
By early 2013, ASIC were created, and mining quickly moved from CPU, GPU, and FPGA to ASIC. The return on mining without ASIC quickly became meaningless. Quite a few more pools started opening up, some of the more popular being F2Pool and Antpool.