The mote of light you probably got due to the substantial amount of xp that you get/got when doing the trades. 5 marks. As for the strange coin... never seen that happen from a mat trade in personally. The cryptarch rep according to patch notes has also been reduced. 'Reduced Cryptarch reputation gain from Engrams, but reputation reward packages now have an increased chance for Legendary Engrams', considering those packages have given me no legendaries since the update a long time ago then it could be an increase of 0% up to 1% and they wouldn't be lying. Buying 20 mats for 10 marks vs selling 50 mats for 5 marks? hmm, unbalanced to say the least. So instead of farming for mats we now have to farm a currency that has a low cap per week and very low cap overall. Hats off to you bungie, you just keep making it harder for me to get my friends back to this game.