i absolutly agree, badges are good. But some times if member with no badge give GOOD advice, he would be ignored ( no badge-does not mean - tiler begginer)
I think it's a question of standing your ground. If you post some advice which you
know is right, and someone, whether they have badges or not, contradicts you, stand your ground (if you feel aggrieved) in an assertive, but polite way - humour is often good to avoid coming across as confrontational.
Both alternative approaches may lead to the right result, just different in approach, but it doesn't mean that yours is less valid than the other person's, even if they have no idea what you're talking about because they've never heard of, or used the equipment or materials you're suggesting.
For example, I will take the Pepsi Taste Test with anyone on this site when it comes to floor prep, because I lay all kinds of different flooring, all of which are much more sensitive to poor prep than tiling is.