It's deliberate and nothing to worry about. It's related to our anti-spam system (used on both sites, but
terragen.org is not officially affiliated with Planetside Software). Usually you won't see it but if you have an IP address that has had suspicious activity reported on it then it can happen sometimes. Some people have IPs randomly assigned to them by their Internet provider and occasionally it can cause this problem. Just fill out the form and you should get access.
The warning message(s) on
Terragen.org are unrelated. They're also not a security threat, but they do cause problems with the site that I hope to fix in time.
- Oshyan