Two major sections of the "alt.*" hierarchy, the "alt.sex.*" and "alt.binaries.*" hierarchies, have been found to fit better in the "alt.*" hierarchy than the Big-eight. Because of the inevitably lurid and sometimes offensive subjects that it would cover, newsgroup administrators objected to the inclusion of one or more newsgroups covering sexual topics in the Big Seven (including the existing "rec.arts.erotica"), fearing that they may prevent the major news hierarchies from being widely distributed. News administrators are free to add any or all of the "alt.sex.*" newsgroups without having to worry about conflicting with the Big Seven. Likewise, any and all of the "alt.binaries.*" newsgroups can be accepted or rejected by administrators if they choose. Binaries are often of extremely large size, which is why administrators may choose to exclude them.