My question is quite similar to What is the purpose of a self executing function in javascript?, however it concerns userscripts (specifically for GreaseMonkey)
react-snap
xslt-grouping
atof
swtbot
autodesk-realitycapture
interactjs
streambuf
amazon-cloudfront
jmsserializerbundle
seekg
oracle-sqldeveloper
rete
kafka-topic
restrserve
message-listener
locally-abstract-type
firebase-machine-learning
compose-db
htk
waffle
activesupport-concern
unselect
chgrp
duplex
language-design
color-wheel
project-structure
libsodium
jmf
exasol