They say that imitation is the sincerest form of flattery.
I say this is some
grade A bullshit.
A biter is, as you've already read in the other definitions, someone who can't
formulate any of their own good ideas, so they steal ideas from those around them, because they are uncreative hacks.
Person A, who worked hard on his computer project, was seen as
a biter, because, although he had used his own ideas, Person B, the real biter, had shown his project first, and was seen by the rest of the world as
an original thinker (even though he never made improvements to his project, ever again, while person A continued to expand with creative ideas, which paid off later in life)