Of course, there is no altar in a Baptist church. Jesus made the ultimate sacrifice, rendering an altar unnecessary any longer.
I know, it's used as a figure of speech sometimes. And it always seems to be down at the front where the preacher is.
And sometimes, that's the problem if we're not careful. We send a message that the place to be saved is down there. To be saved, you have to go there.
I'm not totally against invitations. But the language we use to call people to faith in the Lord Jesus needs to be clear and unequivocal.
I cringe whenever I hear someone give their testimony and say "I walked the aisle." Actually, I cringe whenever I hear anyone say they did anything, beyond repenting of their sins and trusting Christ and him alone for salvation.
That said, I don't have a problem with the preaching exhorting someone to publicly declare their faith in Jesus.