Forgive the unsolicited advice, but I think that's the wrong question. First ask yourself what you'd do with that information. Then think long and hard about indexing your money.
Read up on portfolio theory and you will see that it's incredibly difficult (some say impossible) to beat the risk adjusted return of the market (at least not on purpose). It turns out if you are not in many stocks - 40+ (the exact number depends on who you ask), then you are taking more risk than you are being compensated for.
FWIW I do have a strong majority of portfolio dedicated to index funds, and have automatic investing set up for those funds biweekly. But there do come times where I see a company, and after some due diligence I do see as a company I believe in and see prospering in the long. Tesla is one of those companies so I bought a fair amount 2 months ago.
Regardless of solicited or not, I do agree with your advice and if nothing else, hopefully readers who fear to ask such questions gain from friendly advice such as yours
I do the same thing in my IRA. Right now TSLA is the only individual stock I own, and it is a bit less than 10% of my account value. I bought it at $29 per share 9 months ago or so, knowing I might take a bath, but I believed in the company's long term business model then and I still do. I feel that this kind of investing minimizes the risk factor.
Read up on portfolio theory and you will see that it's incredibly difficult (some say impossible) to beat the risk adjusted return of the market (at least not on purpose). It turns out if you are not in many stocks - 40+ (the exact number depends on who you ask), then you are taking more risk than you are being compensated for.