What is Reddit's opinion of ClipIt?
From 3.5 billion Reddit comments

➔ ClipIt website

By popularity on Reddit, this Service is:

#33 in Clipboard Manager apps

2 reviews of this app found across Reddit:

ClipIt on my Laptop (with Openbox)
and Clipster in combination with Roficlip on my desktop machine (with i3)

ClipIt Ver 1.4.5 - Lightweight GTK+ clipboard manager.

https://github.com/CristianHenzel/ClipIt

Copyright (C) 2010-2012 Cristian Henzel

It is working pretty fine in i3WM under Ubuntu 20.04

Regards