It's interesting you write this. I have a long experience and I use these auto complete on drugs now... I can't see myself writing all the damn code myself anymore.

I remember the days of using books, having to follow the code bits in the book as I typed them. I don't remember diddly squat about it. Same from years of stack overflow. I'd just alt-tab 12 times, read the comments, then read another answer, assess the best answer. Massive waste of time.

Use all the technology you have at your hands I say. But be sure to understand what you auto-completed. If not, stop and learn.