Lots of members, Senior & otherwise (keeping in mind that "Senior" only means having over a certain number of posts and has nothing to do with how long they've been using firearms or the forum) tend to forget everbody is a "newbie" at some point.
I've seen fairly new members also post a "not this tired old subject again" as well as members that have been around for a few years.
To be fair all around though, the written word - the format of Internet forums - is very difficult to use as a medium.
There's no facial expressions or voice inflections to go by.
Not everyone (in fact darn few) is able to convey a message in a written manner.
(If writing was easy, we'd all be published best sellers, right?)
Often, what's taken a rude when written, if spoken would be a simple wry comment.
Other times, what someone is trying to convey can be taken completely the wrong way.
A couple of months ago I made a comment about how much I enjoyed seeing a "lurker" post on a subject, after a long time, but often silent member made a comment.
I consider "lukers" to be in the same class a a "wise old sage", - the type that only says something if it's very important to them or if they have something extremely worthwile to add.
My remark, which was intended to be a high compliment, was taken by the other poster as a huge insult.
Anyhow - enjoy and remember to take everything with a large grain of salt. <-- it helps toughen the skin