I also collecting them because of chance for higher quality seeds but its like pick them, check quality and 99.9% dropped because are not usefull.
I didnt think about botting but there must be way to avoid it. Something like pop up window "are you bot? Write down nubers from image!"
For example if every next try for connection to server frome same ip adress will be asked to rewrite some difficult code, and will be like every 20 minutes, there will be no botting anymore.
Seeds for grass are always usefull but i have so many seeds from farming that it seems to be not worth it.
So this idea still have point for me.
I wouldnt steal a car, But i'd download one if i could.