With time, language does change, thus essential to keep up with those changes by whatever means necessary whether the internet or otherwise. Once words like imbecile, idiot, feeble-minded, faggot,...
Here is an article (one of many on the internet) which lists offensive terms for seniors.
https://www.medicareadvantage.com/news/offensive-senior-terms-and-stereotypes-report
The term "geriatric" is basically an offensive term when applied to older persons. As well as many other terms such as elderly, geezer, old timer, etc. There seems to be few words with a positive...