At the risk of sounding harsh: what fans? And where are they talking about it?
I just had a skim of the main Hero Factory-related sites, and the only active username I see on most of them is yours.
According to the changelog on HS01, you're the only person who's contributed to it in any way in months. The same is true of the Heropedia wiki. The Custom Hero Factory wiki has a little activity happening, but it all seems to be in relation to a single ongoing Youtube series. r/HeroFactory only has 369 members, weeks go by between posts, replies are in the single digits, and once again it looks like you're the most frequent poster by a vast margin. The only outlier is r/HeroFactoryLego, which has 3.4k members, and averages few posts a day, but that one seems to be used for general CCBS MOC-posting now rather than HF-specific discussion.
I'm not saying that HF has no fans, or that it doesn't deserve to be remembered, but the general attitude of the wider community seems ambivalent at best. No one else seems to be anywhere near as fixated with the theme as you appear to be. Instead of sitting around making wistful posts hoping others will recover old content for you, why not create new content of your own, or engage with some of the existing fan content that's currently running? (Such as Master Inika's current HF story on this site).