Actually, don't trust anyone or anything in the cryptocurrency world. We cannot trust some projects, exchanges both top, middle, or small, DEX or CEX. It means that whatever the condition, we must be careful in every crypto activity and business. But, we can take any advantages of the top exchanges, much better than small exchanges because small changes will die more easily than top exchanges. Taking profits from the exchanges by doing some trading activities may be usual and it is no problem and I will prefer to top exchanges. But, we cannot trust them 100%. Just be careful about what's going on in the crypto world.