Bonus conditions are, anyway, the ad campaign part, so the main thing about gambling is having fun, while bonuses can't create much of the income from gambling. So the main thing about gambling is stability of casino network, and this is a different thing than bonus offers...
The stability of the casino network is quite important because it will affect the smooth running of the player's play at the casino.
If the network is unstable, it has the potential to experience problems with intermittent networks and can cause interference when the playing session takes place.
This will cause players to be disappointed because the connection is unstable.
Usually, network stability is disrupted due to promotional events that make the network load higher.
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There are some casinos that do not care if we read their terms or not but what they are after is to see more gamblers on there casino. We need to be patient enough to read and read again.
The more new members who join, the more money will come in.
People who enter will be given a deposit bonus so that many will be interested.
But it is not that easy to give it, there will be conditions applied to the bonus.
So as you said, reading the terms is very important to do so that we know what rules are made and how the deposit bonus will be used.