From our friends on the N3FJP groups.io site.
The resounding answer, from multiple people was NO!
You worked it, you logged it. You may never get a QSL card, but you made the QSO.
Many operators had been licensed for 20, 30, even 40 years before the ARRL introduced Logbook of The World (LoTW).
Many DX operators are just now getting into LoTW and may take a while to transcribe their paper logs into LoTW.
Be patient grasshopper, your QSL may come yet!
Logbook of the World is a free service, provided by the American Radio Relay League (ARRL). You do not need to be an ARRL Member to use LoTW.
But if you are a US-based operator and if you enjoy rapid confirmations of contacts, then join ARRL and “help pay the freight”. LoTW is the benefit I use the most often.
For more information about ARRL, N3FJP logging software, LoTW and another topics, follow the trail to https://www.radioclub-carc.com/resources/
See ‘ya down the log.
Q.) “Do any of you purge your logs of unconfirmed entries after a set amount of time?
I mean, an unconfirmed entry is not worth much.”