Anyone can ask any question that's burning on your mind!
I have a question!! Shall i count those posts as constructive or as post padding?? :p

You can choose as you like, but I am replying and contributing to any and every single question asked in here! (that post was a bump specifically)
if my computer is basically 3 years old, is it powerful enough to even try to mine, and im mean through a co-op, is there anyway i can/will make a contribution? im not expecting any huge return on my mining efforts, but if i can add a millionth or something everyday it still seems worth it too me.
You would likely make around or less than 0.00001 a day which is not worth it for the following reasons:
a) you damage your computer's graphic cards while mining especially on an old PC in this case
b) The cost of electricity to charge your PC will be much higher than 0.00001 a day
if you feel like contributing to the network: what I would suggest is becoming a bitcoin full node.