Each post could be the first time someone is encountering a Wolfram post. If they haven't built up defenses to this kind of self aggrandizement they might believe his words. This, and every piece from him deserves a community note.
Just because you've seen a lot of misinformation from a source in the past is no excuse to stop labeling it as such.
Coming from Physics the first time I heard detailed information about Mathematica (in contrast to Maple) and the Physics related work from a Professor it was also accompanied with a huge disclaimer. Reflecting further on this, a lot of this is very niche and seems to be not explored fully in the spirit of peer review
dang posted a link at the top to such information for those who are unfamiliar, which serves as the note you want without detracting from other discussion
Each post could be the first time someone is encountering a Wolfram post. If they haven't built up defenses to this kind of self aggrandizement they might believe his words. This, and every piece from him deserves a community note.
Just because you've seen a lot of misinformation from a source in the past is no excuse to stop labeling it as such.