On This Way We build a ads banner with: invite link + short detail text + picture
Then with bots, send and forward banner to all of groups for many time.
User See The Banner And Aware Of The Subject And Content Of The Channel
So Every Body That Like Join To Link And All Of Members You Get Are Real And Activate And Stay.
Possibility to post the ad in the your target desired groups with list link
we record a sample video that you can watch we doing ads on whats where