I’m a former mormon, and I can tell you that love bombing (from a cultists perspective) is never from ill intent. They are just trying to share “the truth” and they believe that if you adopt “the truth” everything about your life will be made better.
If someone is love bombing you for an organization, first thing to do is investigate that organization. Read the stuff they don’t want you to read. Particularly, don’t pull that information from their media/materials. You should seek out the opinions of ex-members of the organization to get a real feel for what it’s all about.
For example, imagine if the rotary club was trying to recruit you. What do you think an exrotarian would say? Well, you can google it. And, surprise, it’s mostly “Yeah, I moved and just sort of lost interest”.
Now go visit /r/exmormon and see the miles of shit they have to say about previous membership.
That, to me, is the acid test. Are exmembers that way because it was just sort of a “meh” event. Or did they get there because the organization was abusive?