Ehh. Any password cracker worth their salt would be able to use rules to break hashes created by "The Algorithm", especially easier once the base word has been figured out or supplied by a single plain-text leak.
Unless you are enough of a celebrity or public figure to be personally targeted, nobody will bother. A password leak is going to have 100 million accounts in it, at least 50% of these reused without modification at other websites. Any automated bots and spammers will just try the exact passwords on other sites. If it doesn't work, they move on to the next account and password, instead of trying to guess modifications of non-working passwords.