if you take a look at this
https://www.bustabit.com/license.txtyou will know which site that buy the license from bustabit, and for ethercrash case it seems they buy from bustabit.
Thank you for the link. I forgot about that URL. Yes it seems ethercrash did buy a licence.
What is confusing though is how the Bustabit and Ethercrash websites seem almost identical down to the layout and even chat plugin. I thought licences were regarding the crash software only so how did ethercrash end up getting a clone of Bustabit?