I'd say ignore her. I only glue baste now and have had no problems even on my smaller machines. The only hint of a problem was with my very first one that had fairly large glue globs. It didn't damage, but the machine didn't like it. The second quilt, I diluted the glue and ironed it in. Works like a charm. I recommended glue basting to my Bee and even brought in a sample. One person tried it. I don't know what she did but she swears that she did exactly what I said and ruined her quilt. I think she either used the wrong glue or overglued. She decided to take the glue out halfway thru the process and washed top and batting in the washing machine. Can you imagine the mess? Either way, I can't even bring up the topic because of her. Never had a problem myself.