Why should everybody here strive to be writing professional quality code? What about making games for the fun of it? Is that not a valid pursuit? Who are you to judge? We are all human.
Well. Sure everyone has the right to produce garbage if it pleases, but then if people who just don't care start giving advice to newbies, the fun ends.
It is reasonable to assume that anyone in their right mind would like to improve and at least not do things which have long proven to be bad practises, and with that assumption comes the advice you complain about.