Is there a "secret" code among coders to not offer any help???

[yeto]

I am new to coding and I am noticing not too many questions get answered in the forums. This one included. Is it because coders don't want people to be able to get answers in the forums as that could have an effect on their livelihood?

I have also seen that when coders offer help in a thread they will then go back and delete their answer after a short time has passed. What purpose does that serve?

Thank you,
yeto