Of course you need to beware of such investment projects, you need before you join ISO, you need to study the project and information about authors more happily. All have the right to create a topic, but now many abuse it to earn merit.
This post is only marginally better than those stupid "great project" posts, as it says nothing at all. People aren't creating ANN threads to earn merits--people are just stupid enough to give them to the thread starters for some reason.
I'd also point out that the "thread fakes" are against the rules to begin with; the problem is well-known; and there's no need for this thread. If OP ever read anything in Meta, it would be clear that these are posts made to bump the ANN thread and that people get paid to do it.
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Did you even read the OP? He was asking about all the thread-bumpers, not about scammy ICOs as far as I can tell.