Where to start?
Here is an article talking about the J401k and upcoming changes from January. Unfortunately the article is not very clear (for a better explanation look no further than our own J401k page), but more than that, the comments are somewhat typical.
From the guy that assumes that investing in foreign stocks means choosing individual companies (not possible in a J401k account), to people mocking blogs as sources of information (arguably more impartial than commission-compensated 'professionals'), to others discussing the national pension scheme as though it were optional, and a few advocating for 'safer' methods of investing.
My one sentence advice for people who want to get started with saving for retirement:
"First, figure out what you spend your money on and cut unnecessary spending, then save up an emergency fund, then invest in a J401k account, a NISA account, a robo-advisor, or an online broker, in that order."
My RetireJapan workbook (which expands the above a little, but not much) should be finished by the end of this month. Otanoshimi!