What is the benefit of "compiling the compilations" (جمع الجمع) – with examples? May Allah reward you.

The plural of the plural sometimes indicates multitude, such as "a'areeb" (nomads/Bedouins) and "turuqat" (roads). However, it may not strongly indicate multitude in Arabic, such as "rijalat" (men of distinction) and "buyutat" (prominent families), and can refer to a small number, as in "buyutat Quraysh" (prominent families of Quraysh) and "rijalat al-Arab" (distinguished men of the Arabs). The use of the plural of multitude to refer to a small number is common in contemporary technical terms, such as "dufu'at" (payments), "qubudat" (receipts), and "husumat" (discounts).