Good question. I think the reason is that Ada predates the rise of the Internet and thus it did not have the "Internet-based large bullhorn" that is available

Good question. I think the reason is that Ada predates the rise of the Internet and thus it did not have the "Internet-based large bullhorn" that is available now. Also the main community it targeted were serious professional types rather than the "noisy fanbois" we have now :-) Thus the reason for its "low profile" are mainly Social and Political.