@gronostaj I have to question then, whether closing off-topic is best for the StackExchange community, or is selfishly motivated by overworked moderators. What is the best action for the health and organization of the communities?

Can you explain the benefit of keeping an off-topic post in the community it was posted in? Does that prevent repeat off-topic posts?

Even of the specifics are not there, they belong on softwarerecs.stackexchange.com . If the post merits being closed for insufficient info then do it after migration. I often see posts not being migrated but closed. If off topic is relevant on another community, the post should be migrated. Every moderator should know what the on topic rules are for every other community on se. Needs to be part of their training. Otherwise, closed for off topic seems inappropriate close reason.

If someone uses the software-rec tag, couldn't we have a decision tree appear to let the OP know there is a software-rec community and provide the option to: 1) migrate to softwarerecs.stackexchange.com, or 2) reword to focus on "technique rather than a tool" (@Oliver Salzburg). If this is a common reocurring issue, then an intelligent automated response is useful.