I don`t think that such big ICO is a scum, definitely, it is a bit strange, but it has such a big name before the project and there is so much money in it. If it will be a scum I think there will be an explosion in ICO market.
TRX is on a pump at the moment and i found it strange also that there is an scam accusation for this crypto. It is on the top 20 of the coinmarket cap and i find it hard to believe that this project is a scam. It has a big market and the support is also amazing.