Despite what this article states, Apple support told me not to try to remove any fonts as it could cause other possibly serious problems. Is there a program which can be safely installed which will keep at the top of the font list those fonts which use?

An article in the New York Times yesterday told how to remove unwanted fonts from the Font Book. I followed its instructions (the same as those on the webpage "support.apple.com/kb/ht2509") and was NOT successful in removing fonts. Despite what the newspaper article and the web page stated, my attempts to remove fonts were unsuccessful. I use perhaps 15-20 of the hundreds and hundreds of fonts, and deleting those I don't use would make choosing a font a lot faster. I called support and was told not to try to remove any fonts which I myself had not added to the list(I have not added any) as doing so could cause significant problems elsewhere. The support tech suggested that there might be independent software programs which would keep at the top of the list those fonts I have used, which sure would speed up the process of selecting a font. Anyone know of such a program, or how to safely alter the font list Thanks.