I wanted to monitor my Mikrotik routers with an SNMP exporter, but didn't really know where to start and didn't want to invest a lot of time into it, so I searched for ready-to-use solutions.
Found some, deployed, was quite satisfied.
"Wait, this metric doesn't seem to work, lemme check that
"
"But I don't have the SNMP exporter generator file... Fine, I'll rebuild one myself.
"
"Uuh, this metric on the dashboard doesn't seem to use the right identifier... lemme fix that real quick
"
"OK fine, I'll do it myself then!
"
Found some, deployed, was quite satisfied.
"Wait, this metric doesn't seem to work, lemme check that
""But I don't have the SNMP exporter generator file... Fine, I'll rebuild one myself.
""Uuh, this metric on the dashboard doesn't seem to use the right identifier... lemme fix that real quick
""OK fine, I'll do it myself then!
"

but yeah we talked about it iirc, and I even wrote a Zabbix template from scratch to monitor the PoE stats from my RB5009, not sure where I've put it though
but I'm not using Zabbix anymore
I moved to Prometheus and Grafana 
