"Can you check if he modified the answer after I published mine?"

I just checked with @alexbiojs

you're right, he edited his comment which is not allowed according to the rules.
and I didn't noticed that (seems like neither hive.blog nor peakd put an "Edited" label near the comments in this case).
it is my fault.
this is what I will need to do (checking with hiveblockexplorer) from now on.
thanks for pointing this to me.

just sent you Hive, STEM and TMN.

Transaction ID: 40fc8e386b828b653655e634bc4d6a205c021b48cb58d8308b216c1d4e5abb64

https://neoscan.io/transaction/40FC8E386B828B653655E634BC4D6A205C021B48CB58D8308B216C1D4E5ABB64