 By the late 1980s, many BBS systems had significant file libraries, and this gave rise to leeching, users calling BBSes solely for their files.
<fluency>  By the late 1980s, many BBS systems had significant file libraries, and this gave rise to leeching, users calling BBSes solely for their files.
 By the late 1980s, many BBS systems had significant file libraries, and this gave rise to leechingusers calling BBSes solely for their files.