It's a very interesting point you got there. I personally believe it is "ethically" wrong to be using these bots but then again we're forced to because when you're on the bottom of the food chain you have to use all of the tools at your disposal to be able to swim out of the pond. Whenever one of the new users makes a post it just gets drowned in the sea of others resulting in a very discouraging environment for newer/weaker posters. So right now it's a necessity for some.