Well on the bright side pidgin uses a lot less resources then Yahoo.
I know that today every box comes with at least 2Gb DDRAM2 so memory usage is not that important, but on an old system every MB of RAM counts.
As I write this I'm using an old HP Omnibook 4100 with 98Mb of SDRAM and a 266Mhz processor so yeah memory usage is important to me so f**k all that Yahoo bloatware and the 25Mb it needs.
P.S.: If you're wandering what am I doing with this old laptop, well I just couldn't bring myself to throw it away. It's in perfect condition and although it can't do much on it's own, it's perfect to run RealVNC and connect to my home computer and run everything remotely.