Is it possible to hide snmp info from shodan on mikrotik routers?

Shodan only sees your router if your firewall is not configured properly. Why is your SNMP exposed to internet at all?

i am having on mikrotik input drop for address list shodan, and shodan.io for source ip, but how than shodan finds info about it?
Its snmp info.

web servers src ip may be different than their bot ip

身份验证密码ALL communities (and removal of the "public" community to mitigate brute force attempts on that default community)
SNMP should not be on the WAN port, or at least use a different port number, if that helps anything ?