Anyway, I was checking the wikipedia article for Codex Alexandrinus. That is over 7,000 words and 94 notes. It is full of information, and probably would give readers a reasonable idea of the manuscript. And the problems are sometimes subtle. Like the fact that a large proportion of the scholarship cited is from the 1800s (that doesn't make it wrong, but it does make it dated). Practically every sentence is poorly expressed (and that comes from an Australian). Look at that first note to Greek Bible! But I found a load of problems. (I know it can change all the time so I'll include the relevant bits here.)
1. "Wettstein designated it in 1751 by letter A, and it was the first manuscript to receive thus a large letter as its designation." If we overlook the 'large letter', we find here a typical wikipedia problem: two true facts are brought together in a stupid edit to create a false statement. Yes Wettstein designated it as A, yes, it was the first to have such a designation. But no, the connection between these statements ("thus") is wrong. It was already designated as "A" in Walton's Polyglot in 1657.
5. Leaving aside the fact that this also should be down in "Textual Features", this illustrates another wikipedia problem - inability to nuance and over-confidence in what can be proven. "In the lost two leaves (John 6:50-8:52), by counting the lines, it has been proven that it was not in the book – there was not room for it". So obviously it can be shown that if the text continued as normal there would not be enough space on the two missing leaves for all the text if 7.53 - 8.11 was included. And it is reasonable to assume that this amount of text was missing, and further that these verses were the missing ones. But we can't prove it wasn't some other twelve verses, or that these verses weren't added in the margin, or weren't somewhere else in the book (maybe somewhere in Matthew!). So we should say that A probably lacked these verses (Avid as in NA).
accents and only some breathings (possibly added by a later editor). The letters are larger than those of the Codex Vaticanus. There is no division of words, but some pauses are observed in places in which should be a dot between two words." (I pass over the final phrase in silence). Here is a perfectly helpful couple of sentences, along with the interjection: "The letters are larger than those of the Codex Vaticanus." Oh yeah, like we all know how large those letters are! And this matters how? And why only one comparison?
9. That same clip has a typical wikipedia doublet. In fact a double doublet: "no accents and only some breathings (possibly added by a later editor). ... There are no accent and breathing marks, except a few added by a later hand ..." cf. also "There is no division of words, but some pauses are observed in places in which should be a dot between two words ... but the punctuation was written by the first hand." Well this one is a contradictory doublet!
That is ten problems in the first half of the entry. And there are many more in the second half. I can see why many people advise students to avoid wikipedia. Wikipedia is quite bad. Facts are wrong, correct facts are placed in the wrong context, incorrect conclusions are drawn. Some of these errors would seem to have been deliberately inserted (either that or very stupid people are getting things badly wrong and adding them in). The best and most recent scholarship is cited the least. Evidence is not routinely provided. And the overall style is dreadful.