It's hard to overstate how important BASIC was to the adoption of personal computing - it provided a straightforward way to program an entire generation of home computers and bootstrapped countless careers.
As a clueless, overly ambitious 12 year old I was a massive annoyance for the skilled users on their forums, I remember getting ranted at for wasting people's time with stupid questions, writing awful code, not understanding licenses etc, but it was a pretty good entry point until I managed to get my hands on books for more modern languages.