I don't even need to watch the video, haha. "I've seen this one before". And I don't mean the video. I had a Dell OptiPlex GX 270 for a while, which was infamous for capacitor issues and that was how I found out about this in real time, so to speak. I can't remember what exactly led me to finding out about it, but I was probably looking up some other issue I was having and came across the thread on badcaps.net back when it was ongoing.
I eventually checked mine and found that the row of capacitors between the CPU and rear I/O of the motherboard had a couple that looked like they might be bulging a little bit. The rest looked okay.
Oddly, the PC worked fine... as far as I know. I generally had a lot of instability/software issues in those days though, but I don't know how many I can attribute to that particular cause.
The one odd behavior of that PC that I do remember was that the BIOS settings would clear if the power cable was ever removed. Generally, that happens if the battery is dead and not saving the settings, but it happened with a number of known, good batteries too. I never figured that one out but I suppose it wasn't a major problem in itself, but I did wonder if the capacitors could have something to do with it. As far as I know, that PC otherwise worked fine up until the point I built my first one (2007/2008) and gave it to a friend for her to give it to one of her other friends that i didn't know well (she wanted to play Sims 2). I know she used fine it for a while but for how long, and if any issues arose later, I don't know.