Noticed this since I started on the Phinny server, and so have others in my guild that started at the same time. Sometimes tells do not go through. Resending the same tell will continue to not go through. So far I've noticed two things that can cause a tell not to go through: 1. It's a longer tell. If I break it into two smaller tells, that'll work. 2. Sometimes (not always) if it has "parcel" in the message. Changing it to "mail" works. These will be tells to guildmates or from guildmates and they'll still get blocked. And it can be really annoying trying to talk to someone about a sale when using the word parcel gets it blocked.
Universal Chat Service has been hanging a lot lately.. I have a buffing in PoK hotkey I send to General and Newplayers a couple few times a day.. Sometimes there's as much as a 20 second delay before one or both appear in chats. Once in a rare while one or both do not appear at all.
I've noticed the delay sometimes, but that's not the case here. And we're talking about several people in my guild noticing for the past two months, since we joined up. It's a very easily reproducible thing - find a tell that won't go through (longer tell, sometimes shorter with "parcel" in it). Try the same message a few times, will never go through. Slightly change it up - goes through fine. The ones that never made it through aren't showing up late or anything.
Rule of thumb is this. If the UCS is down or lagging, all chat channels (with the exception of raid, group and guild), in game emails, and tells will not be functional.
Is there a way to know someone has reported you as spam? I've only ever talked in public channels for auctioning (so zone-wide in CL and the /auction channel), and I've always made sure to only put my message back out after waiting several minutes.
As far as I know the only way to know you are marked as spam is for someone else to tell you that is not sharing the same router as you. It is not necessarily the number of messages you send. Certain words can trigger being marked as spam as well as enough people right clicking your name on a channel and marking it as spam.