I'm new to WordPress plugin development, and have heard that according to GPL license you are allowed to sell, redistribute or to modify product.
I've modified the ViperBar plugin and then renamed it to ViperBar Plus and then submitted to WordPress repository luckily it got accepted. I've also placed the donation link on my site.
Now the creator of ViperBar plugin is asking me stealer and want me remove the plugin.
I need your help Please help me.
Should I remove the Plugin ?