Lots of subreddits have minimum account age and/or karma requirements due to how bad the bot situation has gotten, so unless you're willing to farm karma and wa

Lots of subreddits have minimum account age and/or karma requirements due to how bad the bot situation has gotten, so unless you're willing to farm karma and wait a month to post each time (or maintain multiple semi-permanent "burner" accounts, which, as pointed out by Maximus9000, can still be linked together by writing style), it's easier to just purge your comment history on a regular basis.