I have much empathy for your false hopes, given my own memory loss over the years (I am 69). That being said, I do not consider it clickbait to say "Scientists find ways to boost memory in aging brains". Anyone familiar with work in the field understands that if it is genuinely about "human" brains or even "hominid" brains, then that would be specified. To talk generically about "memory in aging brains" is not IMO misleading.

I feel much of your criticism rests with HN - the length of titles is quite restrictive and the initial post (which in this case specified "restoring memory in older rats") usually gets buried with more popular dominating comments. Don't get me wrong, I think the weighting of comments in HN is one of its best features. Other comment systems providing for the "pinning" of the initial comment by the OP - not sure if this is possible on HN?