Ok, lets list the useless nanos and find the most useless nano. There must be a long list of programs that never get any use.
Here is my suggestion for the worst nano :
Trader, Relentless Slayer. Sure the name is impressive but :
ql 159
ncu 49 (lol)
nano cost 800
+ 23 energy and proj. dmg
- 200 rng init (lol)
Post your suggestions, i dont think Relentless Slayer will be easily beaten , but you never know......