Don't worry! They've just become less obvious.

When you come across a ‘user’ that almost exclusively defends one controversial politician/company/government and all of their comments seem to follow a script. Also the account is either brand new or 5 years old but only started posting recently.

Did you know you can no longer post on r/buildapc about asking for suggestions on building PC’s ?

Yeah it's like a sub for a specific narrow purpose then people get buthurt about how people are always making the same posts over and over. So they turn it in to a wiki to "address repetitive spam" or whatever, so at that point you might as well just refer to one of the hundreds of other build lists found on other reputable sites. A lot of the productive hobby subs turn in to "hey check out my [reddit hyped product]!" and people actually posting things they've put effort in get little to no attention.