Everyone warns against shrinking a database, but will it work in my case? 1 GB db with tables removed now 100 MB

Question

Everyone is warning against shrinking a database, e.g. SQLAuthority

But will it be a valid option in my case? The database was originally more than 1 GB, but with a table removed from it (moved to another database), the database is now 100 MB when I do a backup of it, as opposed to the MDF being more than 1 GB still.

What if I shrink the DB, then rebuild all the indexes? Is all of this still taboo?