Trading mining is actually a small bonus to you for trading operations on this exchange ,and it is certainly profitable if you are trading there or are going to do it ,but everyone decides for themselves whether they need it or not

There are few bonuses. Some of the coins has volume mining, some of them market making some of them has both. Idena has market making bonus ... it means that you earn by leaving an open order as long as possible in mining range area. Idena is currently in top 5 most traded coins there and has x3 market making bonus - the only coin with such bonus. I hope it will boost liquidity there because despite 1 whale who is placing 0.25 - 1 BTC walls and guys filling his bag with taker orders there is one else.
I have read that, there is a point that we must first reach the 8k - 9k nodes and currently there are still around 4k more nodes connected, so that's only half of the target for sharding. I am sure that the validation date of December 1 will be able to reach more than 5k nodes. Hopefully everything is successful so that sharding can be realized soon.
Wrong. Sharding does not need 8k-9k nodes it will be added as soon as it will be finished. Network need sharding with 8k-9k nodes -> means it won't grow stable without sharding being that big. And sharding is currently in experimental stage, at least it was like that 2 weeks ago -
Mahmoud, [10.11.20 11:24]
They said that it's on the researching phase
Mahmoud, [10.11.20 11:24]
and they are testing many small prototypes
https://t.me/idena_trading/29993